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Recent Visits

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Observer Date Species
Steve Collins 20 Sep 2018 2
Ted Floyd 20 Sep 2018 5
Ernest Crvich 20 Sep 2018 3
Sean Walters 20 Sep 2018 3
Kevin Keirn 20 Sep 2018 1
Jason B Bidgood 20 Sep 2018 4
Nick Komar 20 Sep 2018 16
Ryan Bushong 20 Sep 2018 15
Jason B Bidgood 20 Sep 2018 5
More Recent Visits...

Top eBirders

Updated ~14 hr(s) ago.
1 Joe Roller
473
2 Norman Erthal
469
3 Bill Maynard
467
4 Loch Kilpatrick
462
5 Tony Leukering
457
6 Chris Wood
452
7 Nick Komar
451
8 John Drummond
450
9 John Vanderpoel
446
10 William Kaempfer
438
Top 100 eBirders...

Top Counties

  • by species
Updated ~14 hr(s) ago.
1 Larimer
421
2 Pueblo
417
3 Boulder
410
4 El Paso
405
5 Jefferson
392
6 Weld
387
7 Douglas
379
8 Bent
369
9 Adams
365
10 Arapahoe
356
All Counties...

Top Hotspots

  • by species
Updated ~5 hr(s) ago.
1 Barr Lake State Park 335
2 Pueblo Reservoir 335
3 Chatfield SP (Douglas Co.) 331
4 Cherry Creek SP 323
5 Prewitt Reservoir (Washington Co) 313
6 Chico Basin Ranch (Pueblo Co.) 306
7 Bonny Reservoir (State Park & State Wildlife Area) 305
8 Chico Basin Ranch (El Paso Co.) 301
9 Jackson Reservoir and State Park 300
10 John Martin Reservoir 298
More Hotspots...

501 Species 642,074 Checklists

Updated ~14 hr(s) ago.
Show All Details
Species Name Count Date By
1 Swainson's Hawk 1 20 Sep 2018 Todd Wills
 
Westerly Creek (MLK Jr Blvd to Sand Creek), Denver
2 Turkey Vulture 2 20 Sep 2018 Catherine Hagen
 
Old Highway 82, Twin Lakes, Colorado, US (39.081, -106.297), Lake
3 Say's Phoebe 1 20 Sep 2018 Todd Wills
 
Westerly Creek (MLK Jr Blvd to Sand Creek), Denver
sparrow sp. 10 20 Sep 2018 Catherine Hagen
 
Old Highway 82, Twin Lakes, Colorado, US (39.081, -106.297), Lake
4 Canada Goose 34 20 Sep 2018 Tracy Pheneger N
 
Boulder Reservoir complex--Boulder Res, Boulder
5 Pied-billed Grebe 1 20 Sep 2018 Alan Ketcham
 
Pueblo Reservoir--South Marina area, Pueblo
6 American Coot 122 20 Sep 2018 Tracy Pheneger N
 
Boulder Reservoir complex--Boulder Res, Boulder
7 Killdeer 5 20 Sep 2018 Tracy Pheneger N
 
Boulder Reservoir complex--Boulder Res, Boulder
gull sp. 38 20 Sep 2018 Tracy Pheneger N
 
Boulder Reservoir complex--Boulder Res, Boulder
8 Double-crested Cormorant 2 20 Sep 2018 Alan Ketcham
 
Pueblo Reservoir--South Marina area, Pueblo
9 Great Blue Heron 5 20 Sep 2018 Tracy Pheneger N
 
Boulder Reservoir complex--Boulder Res, Boulder
10 White-faced Ibis 7 20 Sep 2018 Alan Ketcham
 
Pueblo Reservoir--South Marina area, Pueblo
11 Northern Flicker 1 20 Sep 2018 Alan Ketcham
 
Pueblo Reservoir--South Marina area, Pueblo
12 Common Raven 1 20 Sep 2018 Alan Ketcham
 
Pueblo Reservoir--South Marina area, Pueblo
13 Barn Swallow 12 20 Sep 2018 Alan Ketcham
 
Pueblo Reservoir--South Marina area, Pueblo
14 European Starling 100 20 Sep 2018 Alan Ketcham
 
Pueblo Reservoir--South Marina area, Pueblo
15 Western Meadowlark 1 20 Sep 2018 Tracy Pheneger
 
Boulder Reservoir complex--Boulder Res, Boulder
16 American White Pelican 13 20 Sep 2018 Dawn Wellington
 
Cherry Creek State Park, Aurora US-CO (39.6379,-104.8407), Arapahoe
17 American Kestrel 1 20 Sep 2018 Dawn Wellington
 
Cherry Creek State Park, Aurora US-CO (39.6379,-104.8407), Arapahoe
18 Black-billed Magpie 8 20 Sep 2018 Dawn Wellington
 
Cherry Creek State Park, Aurora US-CO (39.6379,-104.8407), Arapahoe
19 Black-capped Chickadee 4 20 Sep 2018 Dawn Wellington
 
Cherry Creek State Park, Aurora US-CO (39.6379,-104.8407), Arapahoe
20 Yellow-rumped Warbler 16 20 Sep 2018 Dawn Wellington
 
Cherry Creek State Park, Aurora US-CO (39.6379,-104.8407), Arapahoe
21 Wilson's Warbler 2 20 Sep 2018 Dawn Wellington
 
Cherry Creek State Park, Aurora US-CO (39.6379,-104.8407), Arapahoe
22 Western Grebe 8 20 Sep 2018 Mark Chavez
 
Chatfield SP--Deer Creek, Jefferson
23 Mourning Dove 4 20 Sep 2018 Mark Chavez
 
Chatfield SP--Deer Creek, Jefferson
24 Ring-billed Gull X 20 Sep 2018 Mark Chavez
 
Chatfield SP--Deer Creek, Jefferson
25 California Gull 2 20 Sep 2018 Mark Chavez
 
Chatfield SP--Deer Creek, Jefferson
26 Snowy Egret 1 20 Sep 2018 Mark Chavez
 
Chatfield SP--Deer Creek, Jefferson
27 White-breasted Nuthatch 2 20 Sep 2018 Mark Chavez
 
Chatfield SP--Deer Creek, Jefferson
28 House Wren 1 20 Sep 2018 Mark Chavez
 
Chatfield SP--Deer Creek, Jefferson
29 Brewer's Sparrow 1 20 Sep 2018 Mark Chavez
 
Chatfield SP--Deer Creek, Jefferson
30 Savannah Sparrow 1 20 Sep 2018 Mark Chavez
 
Chatfield SP--Deer Creek, Jefferson
31 Song Sparrow 4 20 Sep 2018 Mark Chavez
 
Chatfield SP--Deer Creek, Jefferson
32 Orange-crowned Warbler 2 20 Sep 2018 Mark Chavez
 
Chatfield SP--Deer Creek, Jefferson
33 Lazuli Bunting 1 20 Sep 2018 Mark Chavez
 
Chatfield SP--Deer Creek, Jefferson
34 Wood Duck 6 20 Sep 2018 Ted Uhlemann
 
Chatfield SP--Gazebo Heronry Overlook Area, Douglas
35 Mallard 5 20 Sep 2018 Ted Uhlemann
 
Chatfield SP--Gazebo Heronry Overlook Area, Douglas
36 Common Merganser 8 20 Sep 2018 Ted Uhlemann
 
Chatfield SP--Gazebo Heronry Overlook Area, Douglas
37 Downy Woodpecker 1 20 Sep 2018 Ted Uhlemann
 
Chatfield SP--Gazebo Heronry Overlook Area, Douglas
38 Red-breasted Nuthatch 1 20 Sep 2018 Ted Uhlemann
 
Chatfield SP--Gazebo Heronry Overlook Area, Douglas
39 Ruby-crowned Kinglet 1 20 Sep 2018 Diane Trappett
 
US-CO-Grand Junction-Trappett-Yard, Mesa
40 Lesser Goldfinch 1 20 Sep 2018 Ted Uhlemann
 
Chatfield SP--Gazebo Heronry Overlook Area, Douglas
41 Red-tailed Hawk 1 20 Sep 2018 Hugh Kingery
 
Cherry Creek Trail, south from Walker Road, Douglas
42 Western Wood-Pewee 1 20 Sep 2018 Hugh Kingery
 
Cherry Creek Trail, south from Walker Road, Douglas
43 Blue Jay 2 20 Sep 2018 Hugh Kingery
 
Cherry Creek Trail, south from Walker Road, Douglas
44 Western Bluebird 9 20 Sep 2018 Hugh Kingery
 
Cherry Creek Trail, south from Walker Road, Douglas
45 American Robin 11 20 Sep 2018 Hugh Kingery
 
Cherry Creek Trail, south from Walker Road, Douglas
46 Gray Catbird 1 20 Sep 2018 Hugh Kingery
 
Cherry Creek Trail, south from Walker Road, Douglas
47 House Finch 11 20 Sep 2018 Hugh Kingery
 
Cherry Creek Trail, south from Walker Road, Douglas
48 Red-winged Blackbird 5 20 Sep 2018 Hugh Kingery
 
Cherry Creek Trail, south from Walker Road, Douglas
49 American Crow 2 20 Sep 2018 John Shenot
 
948 LaPorte Ave, Larimer
50 Eurasian Collared-Dove 3 20 Sep 2018 Allen Lewis
 
551–999 State Highway 66, Mead US-CO, Weld
51 Canada Jay 1 20 Sep 2018 Eric Hynes
 
Telluride Ridge Trail, San Miguel
52 Mountain Chickadee 4 20 Sep 2018 Eric Hynes
 
Telluride Ridge Trail, San Miguel
53 Dark-eyed Junco 2 20 Sep 2018 Eric Hynes
 
Telluride Ridge Trail, San Miguel
passerine sp. 3 20 Sep 2018 Catherine Hagen
 
(39.024, -106.25), Chaffee
54 Bald Eagle 1 20 Sep 2018 Allen Lewis N
 
I-25 N, Broomfield US-CO, Broomfield
55 Rock Pigeon 1 20 Sep 2018 Chris Brobin
 
Washington Avenue, El Paso
56 Dusky Flycatcher 1 20 Sep 2018 Bill Schreitz
 
South Platte Park--Northern Wildlife Area, Arapahoe
57 Woodhouse's Scrub-Jay 2 20 Sep 2018 Chris Brobin
 
Washington Avenue, El Paso
58 Pine Siskin 1 20 Sep 2018 Chris Brobin
 
Washington Avenue, El Paso
59 Lincoln's Sparrow 1 20 Sep 2018 Chris Brobin
 
Washington Avenue, El Paso
60 Black-headed Grosbeak 1 20 Sep 2018 Chris Brobin
 
Washington Avenue, El Paso
61 House Sparrow 5 20 Sep 2018 Chris Brobin
 
Washington Avenue, El Paso
62 Brewer's Blackbird 1 20 Sep 2018 Eric Hynes
 
Country Club Drive, San Miguel
63 Sharp-shinned Hawk 1 20 Sep 2018 Steve Collins
 
Blue River, Heeney, Colorado, US (39.965, -106.362), Grand
64 Belted Kingfisher 1 20 Sep 2018 Steve Collins
 
Blue River, Heeney, Colorado, US (39.965, -106.362), Grand
65 Red-naped Sapsucker 1 20 Sep 2018 Steve Collins
 
Blue River, Heeney, Colorado, US (39.965, -106.362), Grand
66 Violet-green Swallow 15 20 Sep 2018 Steve Collins
 
Blue River, Heeney, Colorado, US (39.965, -106.362), Grand
67 American Dipper 1 20 Sep 2018 Steve Collins
 
Blue River, Heeney, Colorado, US (39.965, -106.362), Grand
68 Broad-tailed Hummingbird 1 20 Sep 2018 David Suddjian
 
Ken Caryl - Massey Draw (north side Brannon Gearhart W of red rocks), Jefferson
69 Cooper's Hawk 1 20 Sep 2018 David Suddjian
 
Ken Caryl - Massey Draw (north side Brannon Gearhart W of red rocks), Jefferson
70 Mountain Bluebird 2 20 Sep 2018 David Suddjian N
 
Ken Caryl - Massey Draw (north side Brannon Gearhart W of red rocks), Jefferson
71 American Goldfinch 1 20 Sep 2018 David Suddjian
 
Ken Caryl - Massey Draw (north side Brannon Gearhart W of red rocks), Jefferson
72 Wild Turkey 2 20 Sep 2018 Betty Fenton
 
US-CO-Montrose-2932-2962 Meadows Pkwy - 38.4632x-107.8380, Montrose
73 Cedar Waxwing 40 20 Sep 2018 Cynthia Kristensen N
 
East Plum Creek Trail, Douglas
74 Spotted Towhee 1 20 Sep 2018 Ted Uhlemann
 
Chatfield SP--Upstream of Kingfisher Bridge (East), Douglas
75 Steller's Jay 4 20 Sep 2018 Kathy Carroll
 
Colorado State Forest--Moose Visitor Center, Jackson
76 Fox Sparrow 1 20 Sep 2018 Kathy Carroll
 
Colorado State Forest--Moose Visitor Center, Jackson
77 White-crowned Sparrow 8 20 Sep 2018 Kathy Carroll
 
Colorado State Forest--Moose Visitor Center, Jackson
78 Green-tailed Towhee 1 20 Sep 2018 Kathy Carroll
 
Colorado State Forest--Moose Visitor Center, Jackson
79 Hermit Thrush 1 20 Sep 2018 Linda Czarny N
 
Stanford Area, Arapahoe
80 Green-winged Teal 18 20 Sep 2018 John Drummond
 
Antero Reservoir--southeast side, Park
81 Eared Grebe 4 20 Sep 2018 John Drummond
 
Antero Reservoir--southeast side, Park
82 American Avocet 5 20 Sep 2018 John Drummond
 
Antero Reservoir--southeast side, Park
83 Baird's Sandpiper 7 20 Sep 2018 John Drummond
 
Antero Reservoir--southeast side, Park
84 Northern Harrier 1 20 Sep 2018 John Drummond
 
Antero Reservoir--southeast side, Park
85 Ferruginous Hawk 1 20 Sep 2018 John Drummond
 
Antero Reservoir--southeast side, Park
86 Horned Lark 9 20 Sep 2018 John Drummond
 
Antero Reservoir--southeast side, Park
87 Yellow-headed Blackbird 12 20 Sep 2018 John Drummond
 
Antero Reservoir--southeast side, Park
88 Chipping Sparrow 13 20 Sep 2018 Josh Bruening
 
Grandview Cemetery, Larimer
89 American Redstart 1 20 Sep 2018 Josh Bruening N
 
Grandview Cemetery, Larimer
90 Rufous Hummingbird 1 20 Sep 2018 David Suddjian
 
Ken Caryl - Massey Draw pond, Jefferson
91 Northern Shoveler 2 20 Sep 2018 David Dunford
 
Pastorius Reservoir, La Plata
teal sp. 30 20 Sep 2018 David Dunford
 
Pastorius Reservoir, La Plata
92 Great Horned Owl 1 20 Sep 2018 David Dunford
 
Pastorius Reservoir, La Plata
93 Bushtit 6 20 Sep 2018 David Dunford
 
Pastorius Reservoir, La Plata
94 MacGillivray's Warbler 1 20 Sep 2018 David Dunford
 
Pastorius Reservoir, La Plata
95 Townsend's Warbler 1 20 Sep 2018 David Dunford
 
Pastorius Reservoir, La Plata
96 Osprey 1 20 Sep 2018 Gary Koehn
 
Lake San Cristóbal, Hinsdale
woodpecker sp. 1 20 Sep 2018 Gary Koehn N
 
Lake San Cristóbal, Hinsdale
97 Vesper Sparrow 5 20 Sep 2018 Gary Koehn
 
Lake San Cristóbal, Hinsdale
98 Blue-winged Teal 2 20 Sep 2018 Bob Bishop
 
South Platte Park--C470 area, Arapahoe
99 Hooded Merganser 3 20 Sep 2018 Bob Bishop
 
South Platte Park--C470 area, Arapahoe
tern sp. 1 20 Sep 2018 David Price
 
Horsethief Canyon State Wildlife Area, Mesa
100 Plumbeous Vireo 1 20 Sep 2018 David Price
 
Horsethief Canyon State Wildlife Area, Mesa
vireo sp. 1 20 Sep 2018 David Price
 
Horsethief Canyon State Wildlife Area, Mesa
101 Northern Rough-winged Swallow 4 20 Sep 2018 David Price
 
Horsethief Canyon State Wildlife Area, Mesa
102 Marsh Wren 1 20 Sep 2018 David Price N
 
Horsethief Canyon State Wildlife Area, Mesa
103 Lark Sparrow 1 20 Sep 2018 David Price
 
Horsethief Canyon State Wildlife Area, Mesa
104 Brown Creeper 1 20 Sep 2018 Kathy Carroll
 
22 West, Walden, Jackson
105 Black-chinned Hummingbird 1 20 Sep 2018 Mike Henwood N
 
Henwood yard--2668 Dahlia Court, Mesa
106 Warbling Vireo 1 20 Sep 2018 Peter Burke
 
Eben G. Fine Park, Boulder
107 Western Tanager 2 20 Sep 2018 Peter Burke
 
Eben G. Fine Park, Boulder
108 Sora 1 20 Sep 2018 Jim Merritt
 
Chico Basin Ranch (Pueblo Co.), Pueblo
109 Spotted Sandpiper 1 20 Sep 2018 Jim Merritt
 
Chico Basin Ranch (Pueblo Co.), Pueblo
110 Ladder-backed Woodpecker 1 20 Sep 2018 Jim Merritt
 
Chico Basin Ranch (Pueblo Co.), Pueblo
111 Hammond's Flycatcher 1 20 Sep 2018 Jim Merritt
 
Chico Basin Ranch (Pueblo Co.), Pueblo
112 Western Kingbird 1 20 Sep 2018 Jim Merritt
 
Chico Basin Ranch (Pueblo Co.), Pueblo
113 Curve-billed Thrasher 1 20 Sep 2018 Jim Merritt
 
Chico Basin Ranch (Pueblo Co.), Pueblo
114 Yellow Warbler 1 20 Sep 2018 Jim Merritt
 
Chico Basin Ranch (Pueblo Co.), Pueblo
115 Pygmy Nuthatch 5 20 Sep 2018 Richard Bunn
 
Green Mountain Falls (town), El Paso
Spizella sp. 12 20 Sep 2018 Richard Bunn
 
Green Mountain Falls (town), El Paso
hummingbird sp. 1 20 Sep 2018 Alan Versaw
 
Smith Creek Ponds, El Paso
solitary vireo sp. 1 20 Sep 2018 Alan Versaw
 
Smith Creek Ponds, El Paso
116 Sage Thrasher 1 20 Sep 2018 Alan Versaw
 
Smith Creek Ponds, El Paso
117 Virginia's Warbler 1 20 Sep 2018 Alan Versaw
 
Smith Creek Ponds, El Paso
118 Northern Pygmy-Owl 1 20 Sep 2018 Norman Erthal
 
19336 Island Lake Road, Cedaredge, Colorado, US (39.03, -108.008), Delta
119 American Three-toed Woodpecker 1 20 Sep 2018 Norman Erthal
 
19336 Island Lake Road, Cedaredge, Colorado, US (39.03, -108.008), Delta
120 Red Crossbill 1 20 Sep 2018 Norman Erthal
 
19336 Island Lake Road, Cedaredge, Colorado, US (39.03, -108.008), Delta
121 Eastern Screech-Owl 1 20 Sep 2018 Kevin Keirn
 
Spring Canyon Community Park, Larimer
122 Hairy Woodpecker 2 20 Sep 2018 David Schiff
 
Old Whiskey Rd, Boulder
Empidonax sp. 1 20 Sep 2018 Matt Hofeditz
 
w 134th place, Broomfield
123 American Wigeon 7 20 Sep 2018 Tim Priehs
 
Fossil Creek Park, Larimer
124 White-winged Dove 1 20 Sep 2018 Jane Stulp
 
Farm Yard, Prowers
125 Swainson's Thrush 1 20 Sep 2018 Jane Stulp
 
Farm Yard, Prowers
126 Clay-colored Sparrow 4 20 Sep 2018 Jane Stulp
 
Farm Yard, Prowers
dabbling duck sp. 7 20 Sep 2018 David Antieau N
 
Wyndham Pagosa, Pagosa Springs, Colorado, US (37.268, -107.079), Archuleta
127 Lesser Scaup 2 20 Sep 2018 Adam Cupito
 
Connected Lakes State Park, Mesa
128 Blue-gray Gnatcatcher 2 20 Sep 2018 Adam Cupito
 
Connected Lakes State Park, Mesa
129 Western Screech-Owl 1 20 Sep 2018 Mike Henwood N
 
Henwood yard--2668 Dahlia Court, Mesa
130 Cackling Goose 5 20 Sep 2018 Nick Komar N
 
Wellington State Wildlife Area--Cobb Lake Unit, Larimer
131 Cinnamon Teal 2 20 Sep 2018 Nick Komar P
 
Wellington State Wildlife Area--Cobb Lake Unit, Larimer
Blue-winged/Cinnamon Teal 7 20 Sep 2018 Andy Bankert
 
Wellington State Wildlife Area--Cobb Lake Unit, Larimer
132 Stilt Sandpiper 1 20 Sep 2018 Nick Komar
 
Wellington State Wildlife Area--Cobb Lake Unit, Larimer
133 Wilson's Snipe 1 20 Sep 2018 Andy Bankert
 
Wellington State Wildlife Area--Cobb Lake Unit, Larimer
134 Franklin's Gull 1 20 Sep 2018 Nick Komar
 
Wellington State Wildlife Area--Cobb Lake Unit, Larimer
135 Common Tern 3 20 Sep 2018 Nick Komar N
 
Wellington State Wildlife Area--Cobb Lake Unit, Larimer
136 Cassin's Vireo 1 20 Sep 2018 Nick Komar
 
Wellington State Wildlife Area--Cobb Lake Unit, Larimer
137 Brown Thrasher 1 20 Sep 2018 Nick Komar
 
Wellington State Wildlife Area--Cobb Lake Unit, Larimer
138 Common Grackle 1 20 Sep 2018 Andy Bankert
 
Wellington State Wildlife Area--Cobb Lake Unit, Larimer
139 Common Yellowthroat 6 20 Sep 2018 Nick Komar N
 
Wellington State Wildlife Area--Cobb Lake Unit, Larimer
140 Blue Grosbeak 1 20 Sep 2018 Nick Komar
 
Wellington State Wildlife Area--Cobb Lake Unit, Larimer
141 Flammulated Owl 1 20 Sep 2018 Kathy Carroll
 
22 West, Walden, Jackson
142 Gadwall X 19 Sep 2018 Luke Pheneger
 
Valmont Overlook (Legion Park), Boulder
duck sp. 800 19 Sep 2018 Luke Pheneger
 
Valmont Overlook (Legion Park), Boulder
143 Forster's Tern 1 19 Sep 2018 Luke Pheneger N
 
Valmont Overlook (Legion Park), Boulder
144 Ring-necked Duck 6 19 Sep 2018 Eric Culbertson
 
4924 Lake Creek Village Dr, Edwards US-CO (39.6532,-106.6187), Eagle
swallow sp. 3 19 Sep 2018 Eric Culbertson N
 
4924 Lake Creek Village Dr, Edwards US-CO (39.6532,-106.6187), Eagle
145 Northern Saw-whet Owl 1 19 Sep 2018 Josh Beck N
 
FR 560, Jefferson
146 Ruddy Duck 1 19 Sep 2018 Erik Hendrickson
 
Totten Reservoir, Montezuma
147 Northern Mockingbird 2 19 Sep 2018 George Steele N
 
Norwood, CO, San Miguel
148 Mew Gull 1 19 Sep 2018 Nick Komar N
 
Pond north of Horseshoe Reservoir, Larimer
hawk sp. 1 19 Sep 2018 Rob Cassady
 
Hecla Lake, Boulder
149 Common Poorwill 1 19 Sep 2018 Glenn Walbek
 
Flagler Reservoir State Wildlife Area, Kit Carson
150 Merlin 1 19 Sep 2018 Glenn Walbek
 
Flagler Reservoir State Wildlife Area, Kit Carson
151 Least Flycatcher 1 19 Sep 2018 Glenn Walbek
 
Flagler Reservoir State Wildlife Area, Kit Carson
152 Great-tailed Grackle 3 19 Sep 2018 Glenn Walbek
 
Flagler Reservoir State Wildlife Area, Kit Carson
153 Ovenbird 1 19 Sep 2018 Glenn Walbek
 
Flagler Reservoir State Wildlife Area, Kit Carson
MacGillivray's/Mourning Warbler 1 19 Sep 2018 Glenn Walbek
 
Flagler Reservoir State Wildlife Area, Kit Carson
154 Black-throated Blue Warbler 1 19 Sep 2018 Glenn Walbek P
 
Flagler Reservoir State Wildlife Area, Kit Carson
155 Least Sandpiper 3 19 Sep 2018 Colin Woolley
 
Barr Lake SP--Bird Conservancy of the Rockies office area & below dam, Adams
156 Common Nighthawk 1 19 Sep 2018 Jane Stulp
 
Northgate, Prowers
157 Northern Pintail 3 19 Sep 2018 David Suddjian
 
Holbrook Reservoir, Otero
158 Pectoral Sandpiper 2 19 Sep 2018 David Suddjian
 
Holbrook Reservoir, Otero
159 Long-billed Dowitcher 6 19 Sep 2018 David Suddjian
 
Holbrook Reservoir, Otero
160 Wilson's Phalarope 32 19 Sep 2018 David Suddjian
 
Holbrook Reservoir, Otero
161 Red-necked Phalarope 2 19 Sep 2018 David Suddjian
 
Holbrook Reservoir, Otero
162 Greater Yellowlegs 14 19 Sep 2018 David Suddjian
 
Holbrook Reservoir, Otero
shorebird sp. 200 19 Sep 2018 David Suddjian
 
Holbrook Reservoir, Otero
Larus sp. 2 19 Sep 2018 David Suddjian
 
Holbrook Reservoir, Otero
163 Black Tern 6 19 Sep 2018 David Suddjian
 
Holbrook Reservoir, Otero
164 Canyon Towhee 3 19 Sep 2018 Jim Merritt
 
Red Rock Canyon Open Space, El Paso
165 Prairie Falcon 1 19 Sep 2018 Bea Weaver
 
Roxborough Park Rd--W Titan Rd to Roxborough SP, Douglas
166 Black-necked Stilt 4 19 Sep 2018 David Tønnessen
 
Chico Basin Ranch (Pueblo Co.), Pueblo
167 Peregrine Falcon 1 19 Sep 2018 David Tønnessen
 
Chico Basin Ranch (Pueblo Co.), Pueblo
168 Olive-sided Flycatcher 1 19 Sep 2018 David Tønnessen N
 
Chico Basin Ranch (Pueblo Co.), Pueblo
169 Gray Flycatcher 1 19 Sep 2018 David Tønnessen
 
Chico Basin Ranch (Pueblo Co.), Pueblo
170 Great Crested Flycatcher 1 19 Sep 2018 David Tønnessen
 
Chico Basin Ranch (Pueblo Co.), Pueblo
raven sp. 1 19 Sep 2018 David Tønnessen
 
Chico Basin Ranch (Pueblo Co.), Pueblo
171 Bewick's Wren 1 19 Sep 2018 David Tønnessen
 
Chico Basin Ranch (Pueblo Co.), Pueblo
172 Brown-headed Cowbird 2 19 Sep 2018 David Tønnessen
 
Chico Basin Ranch (Pueblo Co.), Pueblo
blackbird sp. 200 19 Sep 2018 David Tønnessen N
 
Chico Basin Ranch (Pueblo Co.), Pueblo
173 Palm Warbler 1 19 Sep 2018 David Tønnessen N
 
Chico Basin Ranch (Pueblo Co.), Pueblo
174 Dickcissel 1 19 Sep 2018 David Tønnessen N
 
Chico Basin Ranch (Pueblo Co.), Pueblo
crow/raven sp. 2 19 Sep 2018 Laura Lippincott
 
Wheat Ridge Greenbelt--Johnson Park, Jefferson
175 Rock Wren 2 19 Sep 2018 Christina Leslie
 
Roxborough State Park,Iron Bark Dr., Douglas
176 Townsend's Solitaire 4 19 Sep 2018 Josh Beck
 
Reynolds Ranch County Park, Jefferson
177 Black-crowned Night-Heron 1 19 Sep 2018 james mccall
 
Belmar Park, Jefferson
178 Pinyon Jay 1 19 Sep 2018 Walter Wehtje
 
Puma Gulch Road, Larimer
179 Green Heron 1 19 Sep 2018 David Tønnessen
 
Valco Ponds State Wildlife Area, Pueblo
180 Golden Eagle 1 19 Sep 2018 Joe Hanfman
 
Rocky Mountain NP--Trail Ridge Rd--Alpine Visitor Center, Larimer
181 Clark's Nutcracker 1 19 Sep 2018 Joe Hanfman
 
Rocky Mountain NP--Trail Ridge Rd--Alpine Visitor Center, Larimer
182 Brown-capped Rosy-Finch 8 19 Sep 2018 Joe Hanfman
 
Rocky Mountain NP--Trail Ridge Rd--Alpine Visitor Center, Larimer
183 Chihuahuan Raven 2 19 Sep 2018 David Suddjian
 
Two Buttes (town), Baca
184 Cattle Egret 1 19 Sep 2018 Leslie S P
 
Boulder Reservoir complex--Boulder Res, Boulder
185 Black-throated Gray Warbler 1 19 Sep 2018 Norman Erthal
 
F South Road, Colorado, US (38.995, -108.243), Mesa
186 White-tailed Ptarmigan 3 19 Sep 2018 Chris Brown
 
Mount Audubon Trail, Boulder
187 Dusky Grouse 1 19 Sep 2018 Chris Brown
 
Mount Audubon Trail, Boulder
188 American Pipit 15 19 Sep 2018 Chris Brown
 
Mount Audubon Trail, Boulder
warbler sp. (Parulidae sp.) 1 19 Sep 2018 Kevin DeBoer N
 
Wheat Ridge Greenbelt, Jefferson
189 Redhead 4 19 Sep 2018 Mike Henwood
 
Vega Reservoir and Vega State Park, Mesa
190 Sandhill Crane 2 19 Sep 2018 Mike Henwood
 
Vega Reservoir and Vega State Park, Mesa
191 Great Egret 8 19 Sep 2018 Dale Adams N
 
Memorial Park & Prospect Lake, El Paso
192 Lark Bunting 1 19 Sep 2018 Dale Adams
 
Memorial Park & Prospect Lake, El Paso
193 Cassin's Finch 1 19 Sep 2018 Joe Hanfman
 
Rocky Mountain NP--Timber Lake Trail, Grand
194 Eastern Phoebe 1 19 Sep 2018 Frank Farrell P
 
Chatfield SP--Deer Creek, Jefferson
195 Red-headed Woodpecker 1 19 Sep 2018 Lori Nixon P
 
Arapahoe Bend Natural Area, Larimer
196 Loggerhead Shrike 2 19 Sep 2018 Marcel Such
 
Pawnee National Grassland--Murphy's Pasture area & auto tour stops 2 & 3, Weld
197 Orchard Oriole 1 19 Sep 2018 Jane Stulp
 
Farm Yard, Prowers
Accipiter sp. 1 19 Sep 2018 David Suddjian
 
Walsh (town), Baca
Black-capped/Mountain Chickadee 3 19 Sep 2018 M Walt
 
Dillon Reservoir--Frisco Marina area, Summit
198 Horned Grebe 2 19 Sep 2018 Tim Ryan
 
Rueter-Hess Reservoir (restricted access), Douglas
Horned/Eared Grebe 8 19 Sep 2018 Tim Ryan
 
Rueter-Hess Reservoir (restricted access), Douglas
199 Clark's Grebe 1 19 Sep 2018 Tim Ryan
 
Rueter-Hess Reservoir (restricted access), Douglas
200 Common Loon 2 19 Sep 2018 Tim Ryan P
 
Rueter-Hess Reservoir (restricted access), Douglas
201 Tree Swallow 12 19 Sep 2018 james mccall
 
Chatfield SP--Audubon Center & Trails, Jefferson
peep sp. 8 19 Sep 2018 Ryan Claar
 
James M. Robb Colorado River SP--Pear Park section, Mesa
202 Broad-winged Hawk 1 19 Sep 2018 David Leatherman N
 
Grandview Cemetery, Larimer
203 Virginia Rail 1 19 Sep 2018 Jim Merritt
 
Chico Basin Ranch (Pueblo Co.), Pueblo
204 Lesser Yellowlegs 1 19 Sep 2018 Robb Hinds
 
Chico Basin Ranch (Pueblo Co.), Pueblo
205 Greater Sage-Grouse 2 19 Sep 2018 Kathy Carroll
 
22 West, Walden, Jackson
Western/Clark's Grebe 136 19 Sep 2018 Carolyn Beach
 
Barr Lake SP--Neidrach Nature Trail & Visitor Center area, Adams
206 Juniper Titmouse 1 19 Sep 2018 Kathy Carroll
 
22 West, Walden, Jackson
207 Yellow-breasted Chat 1 19 Sep 2018 Peter Burke N
 
Green Mountain Cemetery, Boulder
208 Evening Grosbeak 1 19 Sep 2018 Eric Hynes
 
Telluride (town), San Miguel
Pacific-slope/Cordilleran Flycatcher (Western Flycatcher) 1 19 Sep 2018 Iván Mota N
 
Gateway Mesa Open Space, Douglas
209 Nashville Warbler 1 19 Sep 2018 Doug Swartz N
 
Greyrock Commons, Larimer
210 Lewis's Woodpecker 1 19 Sep 2018 Mike Henwood
 
Powderhorn Ski Area, Mesa
Steller's Jay x Woodhouse's Scrub-Jay (hybrid) 1 19 Sep 2018 Amy Lunde N
 
Home in Rivers Divide, El Paso
211 Williamson's Sapsucker 1 19 Sep 2018 Laura Lippincott
 
16609 W 77th Dr, Arvada US-CO (39.8380,-105.1871), Jefferson
212 Golden-crowned Kinglet 1 19 Sep 2018 Scott Surner
 
Rocky Mt National Park, Larimer
213 Scaled Quail 8 19 Sep 2018 Jim Merritt
 
Chico Basin Ranch (El Paso Co.), El Paso
Mallard (Domestic type) 1 19 Sep 2018 Nick Komar
 
Timnath Reservoir, Larimer
214 Sanderling 3 19 Sep 2018 Nick Komar
 
Timnath Reservoir, Larimer
215 Semipalmated Sandpiper 1 19 Sep 2018 Nick Komar
 
Timnath Reservoir, Larimer
216 Burrowing Owl 3 19 Sep 2018 Nick Komar N
 
Timnath Reservoir, Larimer
flycatcher sp. (Tyrannidae sp.) 4 18 Sep 2018 Terri Mungle
 
Rocky Mountain NP--Upper Beaver Meadows, Larimer
217 Canvasback 1 18 Sep 2018 Kathy Mihm Dunning
 
Rito Hondo Reservoir, Hinsdale
Glossy/White-faced Ibis 2 18 Sep 2018 David Suddjian
 
Thurston Reservoir, Prowers
Buteo sp. 1 18 Sep 2018 David Suddjian
 
Thurston Reservoir, Prowers
218 Ring-necked Pheasant 1 18 Sep 2018 Steven Mlodinow A
 
Kiowa Creek at Kiowa CR 40, Kiowa
219 Solitary Sandpiper 1 18 Sep 2018 Colin Woolley
 
Barr Lake SP--Bird Conservancy of the Rockies office area & below dam, Adams
220 White-throated Swift 1 18 Sep 2018 Woodie Lackey
 
Rim Drive Road, Crawford, Colorado, US (38.568, -107.733), Montrose
221 Black-bellied Plover 3 18 Sep 2018 David Suddjian
 
Neenoshe Reservoir--SE corner (often disjunct), Kiowa
Greater/Lesser Yellowlegs 50 18 Sep 2018 David Suddjian
 
Neenoshe Reservoir--SE corner (often disjunct), Kiowa
Sterna sp. 11 18 Sep 2018 David Suddjian N
 
Upper Queens/Neeskah Reservoir, Kiowa
222 Long-billed Curlew 2 18 Sep 2018 Steven Mlodinow
 
May Ranch, northwest, Prowers
223 Bufflehead 2 18 Sep 2018 Scott Surner
 
Windy Gap Reservoir, Grand
wren sp. 1 18 Sep 2018 Scott Chalmers
 
Paint Mines Open Space, El Paso
finch sp. 2 18 Sep 2018 Luke Pheneger
 
Dry Creek Park and Lake, Boulder
224 Canyon Wren 1 18 Sep 2018 Robert Raker
 
Morrison Hogback 39.6526x-105.1864, Jefferson
225 Greater Roadrunner 1 18 Sep 2018 David Suddjian P
 
Lake Hasty (lake and campground), Bent
226 Marbled Godwit 1 18 Sep 2018 Steven Mlodinow N
 
Upper Queens/Neeskah Reservoir, Kiowa
227 Barn Owl 1 18 Sep 2018 Steven Mlodinow
 
Upper Queens/Neeskah Reservoir, Kiowa
228 Magnolia Warbler 1 18 Sep 2018 Steven Mlodinow N
 
Upper Queens/Neeskah Reservoir, Kiowa
229 Pine Grosbeak 1 18 Sep 2018 Paul Slingsby
 
(39.7023,-105.8547), Clear Creek
Cassin's/Plumbeous Vireo 1 18 Sep 2018 Nick Komar
 
Dixon Reservoir, Larimer
230 Cliff Swallow 2 18 Sep 2018 Dylan Cooper
 
Denver Botanic Gardens and Cheesman Park, Denver
Lazuli/Indigo Bunting 1 18 Sep 2018 David Leatherman N
 
Grandview Cemetery, Larimer
grebe sp. 1 18 Sep 2018 Patricia Floyd
 
Running Deer and Cottonwood Hollow Natural Areas, Larimer
pigeon/dove sp. 9 18 Sep 2018 Patricia Floyd
 
Running Deer and Cottonwood Hollow Natural Areas, Larimer
231 Bank Swallow 5 18 Sep 2018 Kayla Scheid
 
Barr Lake State Park, Adams
Spinus sp. (goldfinch sp.) 1 18 Sep 2018 Kayla Scheid
 
Barr Lake State Park, Adams
232 Western Sandpiper 1 18 Sep 2018 Drew Kelly
 
Green Heron Pond, Mesa
233 Sagebrush Sparrow 1 18 Sep 2018 Drew Kelly
 
Green Heron Pond, Mesa
234 Band-tailed Pigeon 4 18 Sep 2018 Richard Bunn
 
GMF Teller County, Teller
235 Chestnut-sided Warbler 1 18 Sep 2018 David Suddjian N
 
Lamar Community College, Prowers
Western x Clark's Grebe (hybrid) 1 18 Sep 2018 Steven Mlodinow N
 
Neenoshe Reservoir, Kiowa
236 Semipalmated Plover 3 18 Sep 2018 Steven Mlodinow
 
Neenoshe Reservoir, Kiowa
237 Willow Flycatcher 1 18 Sep 2018 Alan Ketcham
 
Chico Basin Ranch (Pueblo Co.), Pueblo
238 Ruby-throated Hummingbird 3 18 Sep 2018 David Suddjian N
 
Prowers - 13th St, Lamar, Prowers
239 American Golden-Plover 2 18 Sep 2018 Steven Mlodinow A
 
Neegronda Reservoir, Kiowa
240 Bonaparte's Gull 1 18 Sep 2018 Steven Mlodinow N
 
Neegronda Reservoir, Kiowa
241 American Bittern 1 18 Sep 2018 Steven Mlodinow N
 
Neegronda Reservoir, Kiowa
Aythya sp. 1 17 Sep 2018 David Dowell
 
San Luis Lakes SP, Alamosa
242 Sabine's Gull 1 17 Sep 2018 Adam Vesely
 
Barr Lake SP--Bird Conservancy of the Rockies office area & below dam, Adams
Sharp-shinned/Cooper's Hawk 1 17 Sep 2018 edward donnan P
 
Ketring Park and Lake, Arapahoe
243 Field Sparrow 1 17 Sep 2018 Jane Stulp
 
Farm Yard, Prowers
sapsucker sp. X 17 Sep 2018 Anonymous eBirder
 
Black Canyon of the Gunnison NP--South Rim, Montrose
Graylag Goose (Domestic type) 1 17 Sep 2018 Todd Olson
 
Denver City Park--Denver Zoo, Denver
244 Prothonotary Warbler 1 17 Sep 2018 Burke Angstman N
 
Chatfield SP--N Boat Ramp area, Jefferson
245 Cordilleran Flycatcher 1 17 Sep 2018 Mackenzie Goldthwait N
 
Lime Creek Road--North end, San Juan
246 Herring Gull 1 17 Sep 2018 David Tønnessen N
 
Antero Reservoir, Park
jay sp. 1 17 Sep 2018 Anonymous eBirder
 
Challenger Park-Soccer Field, Douglas
goose sp. 2 17 Sep 2018 Eric Culbertson N
 
3101 Lake Creek Village Dr, Edwards US-CO (39.6543,-106.6256), Eagle
247 Grasshopper Sparrow 1 17 Sep 2018 Myron Gerhard P
 
Rocky Flats NWR, Jefferson
248 Chestnut-collared Longspur 1 17 Sep 2018 David Tønnessen N
 
Eleven Mile State Park, Park
Common/Arctic Tern 1 16 Sep 2018 Nick Komar P
 
Boyd Lake, Larimer
249 Grace's Warbler 1 16 Sep 2018 Mackenzie Goldthwait N
 
Haviland Lake Area, La Plata
Ruby-throated/Black-chinned Hummingbird 1 16 Sep 2018 Leslie S
 
Twin Lakes (Boulder County), Boulder
250 Parasitic Jaeger 1 16 Sep 2018 Alan Ketcham N
 
Chatfield SP--N Boat Ramp area, Jefferson
251 Sharp-tailed Grouse 1 16 Sep 2018 Gwen Moore N
 
30872–30966 County Road 18, Steamboat Springs US-CO (40.3696,-106.8222), Routt
Tringa sp. 1 16 Sep 2018 Leslie S
 
Terry Lake, Boulder
252 Blackpoll Warbler 1 16 Sep 2018 David Dowell P
 
Van's Grove (Road JJ, east of Ft. Lyon), Bent
253 Northern Cardinal 3 16 Sep 2018 Dean Shoup P
 
Bonny Reservoir--Wagon Wheel Campground area, Yuma
Cackling/Canada Goose 5 16 Sep 2018 Leslie S
 
Ish Reservoir (Larimer/Boulder cos.), Boulder
falcon sp. 1 16 Sep 2018 Natalie Vande Vuss
 
Rocky Mountain NP--Farview Curve, Grand
254 Caspian Tern 2 16 Sep 2018 Anonymous eBirder P
 
Jackson Reservoir and State Park, Morgan
255 Long-tailed Jaeger 1 16 Sep 2018 elaine wagner N
 
Chatfield SP--Marina, Douglas
Western/Eastern Meadowlark 2 16 Sep 2018 Todd Olson
 
Barr Lake SP--Bird Conservancy of the Rockies office area & below dam, Adams
256 Tennessee Warbler 3 16 Sep 2018 David Dowell P
 
Upper Queens/Neeskah Reservoir, Kiowa
257 Northern Goshawk 1 16 Sep 2018 Sue Riffe
 
Camp Dick/Peaceful Valley, Boulder
Semipalmated/Western Sandpiper 1 16 Sep 2018 Candice Johnson
 
Clover Basin Reservoir, Boulder
Selasphorus sp. 1 16 Sep 2018 Leslie Stewart
 
The ice house, Montezuma
258 Black Phoebe 1 16 Sep 2018 James Beatty N
 
Pastorius Reservoir, La Plata
259 Eastern Kingbird 2 16 Sep 2018 David Ely N
 
Big Dry Creek & Willow Run Open Space (Broomfield), Broomfield
Graylag x Swan Goose (Domestic type) (hybrid) 2 16 Sep 2018 Patrick O'Driscoll P
 
Denver City Park, Denver
Yellow-bellied/Red-naped Sapsucker 1 16 Sep 2018 William Mueller
 
s. of Lily l;k my openforest stps1-15, Larimer
260 Gambel's Quail 1 16 Sep 2018 Deb Mallory
 
Grand Junction Wildlife Area, Mesa
Hammond's/Dusky Flycatcher 1 16 Sep 2018 Deb Mallory N
 
Grand Junction Wildlife Area, Mesa
Tree/Violet-green Swallow 1 16 Sep 2018 Deb Mallory
 
Grand Junction Wildlife Area, Mesa
Cassin's/Western Kingbird 1 16 Sep 2018 Dean Shoup P
 
Holyoke Cemetery, Phillips
Short-billed/Long-billed Dowitcher 1 16 Sep 2018 David Dowell
 
Neenoshe Reservoir, Kiowa
Catharus sp. 1 16 Sep 2018 Jacy Bernath-Plaisted N
 
Rocky Mountain NP--Stormy Peaks area, Larimer
jaeger sp. 1 16 Sep 2018 John Haycraft N
 
Chatfield SP--N Boat Ramp area, Jefferson
261 Chimney Swift 1 16 Sep 2018 Dean Shoup
 
Haxtun--WTP, Phillips
Downy/Hairy Woodpecker 3 16 Sep 2018 Tanja Britton
 
Home, El Paso
262 Buff-breasted Sandpiper 1 16 Sep 2018 Kevin DeBoer P
 
Jackson Reservoir--North, Morgan
263 Indigo Bunting 2 16 Sep 2018 Kevin DeBoer
 
Jackson Reservoir--North, Morgan
Graylag Goose (Domestic type) x Canada Goose (hybrid) 1 15 Sep 2018 Cody Russell
 
Belmar Park, Jefferson
264 Cassin's Kingbird 2 15 Sep 2018 Brandon K. Percival
 
Pueblo Reservoir--Swallows area, Pueblo
265 Calliope Hummingbird 1 15 Sep 2018 Irene Fortune
 
My yard,also drainage behind yard, Larimer
Cassin's/Blue-headed Vireo 1 15 Sep 2018 David Dowell
 
Rocky Ford State Wildlife Area, Otero
266 Bell's Vireo 1 15 Sep 2018 Diane Roberts N
 
Jackson Reservoir--East, Morgan
267 Barrow's Goldeneye 4 15 Sep 2018 Santiago Tabares
 
Echo Lake area, Clear Creek
268 Lesser Black-backed Gull 1 15 Sep 2018 Christine Alexander
 
Cherry Creek SP--Pelican Point area, Arapahoe
269 McCown's Longspur 4 15 Sep 2018 Scott Surner
 
County Road 96, Briggsdale, Colorado, US (40.683, -104.34), Weld
bluebird sp. X 15 Sep 2018 Adam Cupito
 
Mesa Verde NP, Montezuma
270 Cassin's Sparrow 2 15 Sep 2018 Richard Bunn
 
Chico Basin Ranch (Pueblo Co.), Pueblo
271 Mississippi Kite 1 15 Sep 2018 Jane Stulp
 
Lamar Community College, Prowers
272 Red-eyed Vireo 1 15 Sep 2018 Gabriel Wiltse
 
Barr Lake State Park, Adams
pewee sp. (Contopus sp.) 1 15 Sep 2018 Eric Culbertson N
 
(39.6754,-106.8346), Eagle
273 Eastern Bluebird 1 15 Sep 2018 Jonathan Bookman P
 
Homestead Ranch Park, El Paso
chickadee sp. 1 15 Sep 2018 Julie Szabo N
 
Forest Road, Near Cumbres Creek, Conejos
phalarope sp. 2 15 Sep 2018 Meg Reck
 
Barr Lake State Park, Adams
nuthatch sp. 1 15 Sep 2018 Jason B Bidgood
 
Fairmount Cemetery, Denver
shrike sp. 1 15 Sep 2018 Darcy Bullock
 
Genesee Mountain Park--south of I-70, Jefferson
274 Long-eared Owl 1 15 Sep 2018 Aaron Driscoll P
 
Chico Basin Ranch (El Paso Co.), El Paso
thrush sp. 1 15 Sep 2018 Michael Tucker
 
Mount Elbert area, Lake
Haemorhous sp. 3 15 Sep 2018 James Nelson
 
West Estes Park, Larimer
275 Bullock's Oriole 1 15 Sep 2018 Chuck Aid
 
Wheat Ridge Greenbelt--West Lake, Jefferson
Spizella sp./American Tree Sparrow 1 15 Sep 2018 Frank and Nancy Hatch
 
Denver, Denver
276 Summer Tanager 1 15 Sep 2018 Phil Lyon N
 
Yampa River Botanic Park, Routt
277 Northern Waterthrush 1 15 Sep 2018 Steven Mlodinow
 
Brett Gray Ranch (restricted access), Lincoln
278 Chukar 1 14 Sep 2018 connee moffatt N
 
Grand Junction Wildlife Area, Mesa
Greater/Lesser Scaup X 14 Sep 2018 Stephine Lacey N
 
Windy Gap Reservoir, Grand
Western/Eastern Wood-Pewee 1 14 Sep 2018 Mark Peterson
 
Brett Gray Ranch (restricted access), Lincoln
279 Black-and-white Warbler 1 14 Sep 2018 Mark Peterson
 
Brett Gray Ranch (restricted access), Lincoln
280 Rose-breasted Grosbeak 1 14 Sep 2018 Mark Peterson N
 
Brett Gray Ranch (restricted access), Lincoln
281 Willet 1 13 Sep 2018 William Kaempfer
 
Prewitt Reservoir (Washington Co), Washington
Rose-breasted/Black-headed Grosbeak 1 13 Sep 2018 Rita Johnston
 
246 County Road 207, Durango US-CO (37.2822,-107.9350), La Plata
large falcon sp. 1 13 Sep 2018 Lori Zabel
 
Arapahoe Bend Natural Area--Rigden Reservoir (Strauss Cabin Lake), Larimer
Herring/Iceland Gull 1 13 Sep 2018 Kayla Scheid
 
Cherry Creek SP--Cottonwood Creek Wetlands, Arapahoe
282 Black Swift 1 12 Sep 2018 Joe Hanfman
 
Box Canyon Falls Park, Ouray
Neotropic/Double-crested Cormorant 1 12 Sep 2018 Karen Beaty
 
Matthews-Reeser Bird Sanctuary, Larimer
swift sp. 28 11 Sep 2018 David Wade N
 
North Shields Pond Natural Area, Larimer
Common/Red-breasted Merganser 10 10 Sep 2018 Michael Lester
 
Chatfield SP--Marina Sandspit, Douglas
283 Mountain Plover 10 10 Sep 2018 Tony Leukering N
 
CRs 72 and J intersection area, Kiowa
Setophaga sp. 1 10 Sep 2018 Chris Brown
 
Cherry Creek SP, Arapahoe
284 Snow Goose 3 10 Sep 2018 Jane Stulp N
 
Hwy 50 / Hwy 287 west of Lamar, Prowers
285 Tundra Swan 1 10 Sep 2018 Jane Stulp N
 
Hwy 50 / Hwy 287 west of Lamar, Prowers
286 Hooded Warbler 1 10 Sep 2018 Ginny Bergstrom N
 
Welchester Tree Grant Park, Jefferson
287 Alder Flycatcher 1 10 Sep 2018 Steven Mlodinow P
 
Jackson Reservoir and State Park, Morgan
288 Baltimore Oriole 2 10 Sep 2018 Steven Mlodinow
 
Jackson Reservoir and State Park, Morgan
eagle sp. 1 9 Sep 2018 Cathy bondy
 
Blodget Peak Open Space, El Paso
merganser sp. X 9 Sep 2018 Ted Floyd
 
Valmont Overlook (Legion Park), Boulder
Buteo/eagle sp. 1 9 Sep 2018 Leslie S
 
Gunbarrel Hill, Boulder
Streptopelia sp. 2 9 Sep 2018 Luke Pheneger
 
Lagerman Reservoir, Boulder
diurnal raptor sp. 1 9 Sep 2018 Luke Pheneger
 
Golden Ponds Park and Nature Area, Boulder
289 Gray Vireo 2 9 Sep 2018 Steven Mlodinow N
 
Johnson Canyon, Las Animas
290 Blackburnian Warbler 1 8 Sep 2018 Mark Chavez P
 
Bobolink Trail, Boulder
Gray/Dusky Flycatcher 1 8 Sep 2018 Ryan Votta
 
Summit Reservoir, Montezuma
291 Piping Plover 1 8 Sep 2018 Pablo Quezada N
 
Prewitt Reservoir (Washington Co), Washington
owl sp. 1 8 Sep 2018 Charles Schwartze N
 
Chico Basin Ranch (El Paso Co.), El Paso
292 Ash-throated Flycatcher 1 8 Sep 2018 Christian Hagenlocher P
 
7726 County Road 154, Salida US-CO (38.5455,-106.0118), Chaffee
Sedge/Marsh Wren 1 8 Sep 2018 Jim Thompson N
 
Riverbend Ponds Natural Area, Larimer
293 Rufous-crowned Sparrow 1 8 Sep 2018 Steven Mlodinow
 
Purgatoire River W of Alejandro Canyon, Las Animas
Common/Forster's Tern 1 8 Sep 2018 Joey Kellner
 
Chatfield SP--Marina Sandspit, Douglas
294 Hepatic Tanager 1 8 Sep 2018 Steven Mlodinow N
 
Alejandro Canyon, Las Animas
295 Short-eared Owl 1 7 Sep 2018 Steven Mlodinow N
 
LACR 147 Owl Crossing, Las Animas
296 Acorn Woodpecker 1 7 Sep 2018 Leona Ryter P
 
Ryter House, Montezuma
Loggerhead/Northern Shrike 1 7 Sep 2018 Mike Henwood N
 
Grand Junction Wildlife Area, Mesa
Red-necked/Red Phalarope 3 7 Sep 2018 Candice Johnson
 
Rocky Mountain Arsenal NWR, Adams
297 Red-shouldered Hawk 1 7 Sep 2018 Mark Peterson P
 
Brett Gray Ranch (restricted access), Lincoln
tanager sp. (Piranga sp.) 1 7 Sep 2018 Mark Peterson
 
Brett Gray Ranch (restricted access), Lincoln
298 Yellow-crowned Night-Heron 1 7 Sep 2018 Norman Erthal P
 
Stalker Lake State Wildlife Area, Yuma
kinglet sp. 1 7 Sep 2018 Christian Hagenlocher
 
Buena Vista Ice Pond (private), Chaffee
Bohemian/Cedar Waxwing 1 6 Sep 2018 Carol Phillips
 
2400 Garmish Dr., Eagle
Domestic goose sp. (Domestic type) 1 5 Sep 2018 Sean Walters
 
Timnath Reservoir-East Side, Larimer
Bullock's x Baltimore Oriole (hybrid) 1 5 Sep 2018 David Tønnessen
 
Stalker Lake State Wildlife Area, Yuma
299 Greater Prairie-Chicken 4 5 Sep 2018 David Tønnessen
 
39894 County Road 20, Holyoke, Colorado, Phillips
Cooper's Hawk/Northern Goshawk 1 5 Sep 2018 Santiago Tabares
 
Reynolds Ranch County Park, Jefferson
300 Anna's Hummingbird 1 5 Sep 2018 David Tønnessen N
 
Holyoke (town), Phillips
rail/crake sp. 1 5 Sep 2018 Ted Floyd N
 
Walden Ponds Wildlife Habitat (Walden & Sawhill Ponds all together), Boulder
301 Pine Warbler 1 5 Sep 2018 Cynthia Madsen P
 
Cherry Creek SP, Arapahoe
302 Greater White-fronted Goose 1 4 Sep 2018 David Wade N
 
Timnath Reservoir, Larimer
303 Northern Parula 1 4 Sep 2018 Henry Detwiler P
 
Pastorius Reservoir, La Plata
304 Carolina Wren 1 4 Sep 2018 Mark Peterson N
 
Van's Grove (Road JJ, east of Ft. Lyon), Bent
towhee sp. 4 3 Sep 2018 Paula Hansley N
 
Plainview Road-Coal Creek, Jefferson
305 Upland Sandpiper 1 3 Sep 2018 David Dowell N
 
Prewitt Reservoir (Washington Co), Washington
306 Philadelphia Vireo 1 3 Sep 2018 Charlie Chase N
 
Barr Lake SP--Bird Conservancy of the Rockies office area & below dam, Adams
new world oriole sp. 1 2 Sep 2018 Michael Lester
 
Jackson Reservoir and State Park, Morgan
307 Canada Warbler 1 2 Sep 2018 Mark Peterson N
 
Brett Gray Ranch (restricted access), Lincoln
Rufous/Allen's Hummingbird 1 2 Sep 2018 Helen Butts
 
Antero Reservoir, Park
308 Red-bellied Woodpecker 1 2 Sep 2018 David Dowell
 
Bonny Reservoir--Foster Grove area, Yuma
309 Golden-winged Warbler 1 2 Sep 2018 David Dowell P
 
Bonny Reservoir--Foster Grove area, Yuma
310 Purple Martin 1 2 Sep 2018 Brenda Wright N
 
Nucla Domestic Reservoir, Montrose
Mallard/Mexican Duck 1 2 Sep 2018 David Tønnessen N
 
Neenoshe Reservoir--SE corner (often disjunct), Kiowa
311 Bobolink 4 2 Sep 2018 Ted Floyd N
 
Carpenter Ranch, Routt
312 Blue-headed Vireo 1 2 Sep 2018 Steven Mlodinow P
 
Brett Gray Ranch (restricted access), Lincoln
313 Swamp Sparrow 1 2 Sep 2018 Steven Mlodinow N
 
Brett Gray Ranch (restricted access), Lincoln
small falcon sp. 1 1 Sep 2018 Scott Dieni
 
Belmar Park, Jefferson
white egret sp. 2 1 Sep 2018 Leslie S N
 
Twin Lakes (Boulder County), Boulder
314 Yellow-billed Cuckoo 1 1 Sep 2018 Steven Mlodinow
 
Melody Tempel Grove, Bent
315 Neotropic Cormorant 1 1 Sep 2018 Steven Mlodinow P
 
Neenoshe Reservoir, Kiowa
Lazuli x Indigo Bunting (hybrid) 1 31 Aug 2018 Lisa Edwards
 
Jackson Reservoir and State Park, Morgan
316 Red Phalarope 1 31 Aug 2018 Kathy Mihm Dunning P
 
Jackson Reservoir--North, Morgan
317 White Ibis 1 31 Aug 2018 Steven Mlodinow N
 
Van's Marsh (Gageby Creek at Bent CR JJ), Bent
rosy-finch sp. 1 31 Aug 2018 Sarah Spotten N
 
Grays & Torreys Peaks and trails, Clear Creek
Common/Barrow's Goldeneye 6 30 Aug 2018 Gerald "Jerry" Baines
 
Echo Lake area, Clear Creek
Spotted/Eastern Towhee (Rufous-sided Towhee) 1 30 Aug 2018 M Walt
 
Dillon Reservoir--Windy Point, Summit
Philadelphia/Warbling Vireo 1 30 Aug 2018 Alan Ketcham N
 
FR363, 717 Trails, Teller
bird sp. 1 29 Aug 2018 Sean Fitzgerald
 
Bear Creek Lake Park--Boat Launch Area, Jefferson
phoebe sp. 1 29 Aug 2018 Aaron Boone
 
Bear Creek Lake Park--Boat Launch Area, Jefferson
Bullock's/Baltimore Oriole 2 28 Aug 2018 Jon Horn
 
Neenoshe Reservoir--Locust Grove, Kiowa
Myiarchus sp. 1 28 Aug 2018 David Suddjian N
 
Melody Tempel Grove, Bent
318 Little Blue Heron 1 28 Aug 2018 Steven Mlodinow N
 
Lower Latham Reservoir area, Weld
319 Vermilion Flycatcher 3 27 Aug 2018 David Suddjian P
 
Higbee Valley Road (Otero CR 804), Otero
320 Black-throated Sparrow 1 27 Aug 2018 Diane Roberts N
 
Higbee Valley Road (Otero CR 804), Otero
321 Red Knot 1 26 Aug 2018 David Dowell P
 
Prewitt Reservoir (Washington Co), Washington
Alder/Willow Flycatcher (Traill's Flycatcher) 1 26 Aug 2018 David Dowell
 
Flagler Reservoir State Wildlife Area, Kit Carson
322 Common Goldeneye 1 26 Aug 2018 Sally Waterhouse N
 
Sherrie's Patch: Sands, Hatchery, Frantz, Mesa, Chaffee
323 Short-billed Dowitcher 1 25 Aug 2018 Steven Mlodinow P
 
Upper Queens/Neeskah Reservoir, Kiowa
324 Yellow-bellied Flycatcher 1 23 Aug 2018 Glenn Walbek P
 
Flagler Reservoir State Wildlife Area, Kit Carson
Snow/Ross's Goose 6 23 Aug 2018 Jane Stulp N
 
Arkansas River--US 50 crossing, Prowers
cormorant sp. 2 21 Aug 2018 Ben Sampson P
 
Cherry Creek SP--Marina & nearby Dam Trail, Arapahoe
nighthawk sp. 1 20 Aug 2018 David Wade N
 
North Shields Pond Natural Area, Larimer
Glossy x White-faced Ibis (hybrid) 1 20 Aug 2018 David Tønnessen P
 
Neenoshe Reservoir--SE corner (often disjunct), Kiowa
yellow-bellied kingbird sp. 1 20 Aug 2018 David Tønnessen N
 
Neenoshe Reservoir, Kiowa
325 Dunlin 1 19 Aug 2018 Steven Mlodinow N
 
Arapaho NWR--Auto Loop, Jackson
Barn x Cliff Swallow (hybrid) 1 19 Aug 2018 David Tønnessen N
 
CO home (1/7 acre), El Paso
326 Veery 3 19 Aug 2018 Steven Mlodinow N
 
Rand (town), Jackson
grackle sp. 3 18 Aug 2018 Charles Hundertmark
 
Beebe Draw area, Weld
327 Painted Bunting 3 17 Aug 2018 Adam Vesely N
 
Higbee Valley Road (Otero CR 804), Otero
328 Snowy Plover 2 16 Aug 2018 Jane Stulp
 
Holbrook Reservoir, Otero
large swift sp. 1 16 Aug 2018 Pamela Goolsby
 
Matthews-Reeser Bird Sanctuary, Larimer
329 Tricolored Heron 1 13 Aug 2018 Nathan Pieplow N
 
Thurston Reservoir, Prowers
330 Zone-tailed Hawk 1 13 Aug 2018 Norman Erthal N
 
Higbee Valley Road (Otero CR 804), Otero
Passerina sp. 1 13 Aug 2018 Tyler Stewart N
 
Higbee Valley Road (Otero CR 804), Otero
331 Least Tern 1 12 Aug 2018 John Drummond
 
John Martin Reservoir, Bent
Neotropic x Double-crested Cormorant (hybrid) 1 12 Aug 2018 Cheri Phillips P
 
Cherry Creek SP--Pelican Point area, Arapahoe
longspur sp. 1 12 Aug 2018 Henrey Deese
 
Pawnee National Grassland--Hwy. 104 @ Hwy. 69 (Driving Tour Stop 9), Weld
Black x Eastern Phoebe (hybrid) 1 11 Aug 2018 Steven Mlodinow N
 
Higbee Valley Road (Otero CR 804), Otero
332 Mexican Duck 1 11 Aug 2018 Steven Mlodinow N
 
Neenoshe Reservoir, Kiowa
Hepatic/Summer Tanager 1 11 Aug 2018 Nick Moore N
 
Higbee Valley Road (Otero CR 804), Otero
333 Baird's Sparrow 3 10 Aug 2018 Andy Bankert N
 
Soapstone Prairie Natural Area, Larimer
334 Greater Scaup 1 7 Aug 2018 Stephen Chase P
 
Rocky Mountain NP--Lily Lake area, Larimer
335 Mottled Duck 1 6 Aug 2018 Janeal W. Thompson N
 
Neegronda Reservoir, Kiowa
336 Least Bittern 1 5 Aug 2018 Loch Kilpatrick N
 
Neegronda Reservoir, Kiowa
337 Lesser Nighthawk 1 4 Aug 2018 Steven Mlodinow L
 
Upper Queens/Neeskah Reservoir, Kiowa
338 Northern Bobwhite 1 4 Aug 2018 Steven Mlodinow N
 
Neenoshe Reservoir, Kiowa
339 Boreal Owl 1 1 Aug 2018 David Suddjian
 
Coal Bank Pass, San Juan
340 Lucy's Warbler 1 31 Jul 2018 Steve Larson N
 
Ismay Trading Post area (37.3289,-109.0407), Montezuma
341 White-winged Crossbill 2 30 Jul 2018 Steve Larson N
 
South Fork area, Rio Grande
342 Eastern Meadowlark 4 29 Jul 2018 Steven Mlodinow A
 
Lower Queens Reservoir, Kiowa
Rusty/Brewer's Blackbird 1 29 Jul 2018 diana beatty N
 
Cross Creek Regional Park, El Paso
343 Glossy Ibis 1 28 Jul 2018 Eric Hynes P
 
Miramonte Reservoir, San Miguel
344 Scott's Oriole 1 27 Jul 2018 Susan Pellegrini N
 
Brewster Ridge, Mesa
345 Black Rail 1 26 Jul 2018 Janeal W. Thompson N
 
County Road 13 @ Ark River Bridge, Prowers
346 Surf Scoter 1 22 Jul 2018 Jack Bushong P
 
San Luis Lakes SP, Alamosa
Black-crowned/Yellow-crowned Night-Heron 1 19 Jul 2018 Nick Komar N
 
Running Deer and Cottonwood Hollow Natural Areas, Larimer
large shorebird sp. 2 16 Jul 2018 yvonne parrott
 
Unnamed Road, Trinidad, Colorado, US (37.136, -104.557)lake Trinidad, Las Animas
347 Common Gallinule 1 15 Jul 2018 Mackenzie Goldthwait N
 
Running Deer and Cottonwood Hollow Natural Areas, Larimer
348 Eastern Wood-Pewee 1 13 Jul 2018 Ben Sampson P
 
Tamarack Ranch State Wildlife Area--385 Rd., Logan
349 Winter Wren 1 13 Jul 2018 Leslie S P
 
Long Lake & Lake Isabelle Trail, Boulder
350 Pacific Wren 1 12 Jul 2018 Jay Breidt P
 
West Creek, Larimer
Swan Goose (Domestic type) 1 5 Jul 2018 Christine Alexander
 
Colorado National Monument--Devil's Kitchen Trail, Mesa
Pacific/Winter Wren 1 5 Jul 2018 Kathy Mihm Dunning P
 
Ouzel Falls Trail - Camper Cutoff to Bluebird Lake Trail, Boulder
Spotted x Eastern Towhee (hybrid) 3 4 Jul 2018 David Dowell P
 
Tamarack Ranch State Wildlife Area, Logan
Domestic goose sp. (Domestic type) x Canada Goose (hybrid) 1 4 Jul 2018 Peter Ruprecht P
 
Hodgson-Harris Reservoir, Boulder
351 Rough-legged Hawk 1 26 Jun 2018 Jill Smith P
 
County Road 3.5 near CC, Prowers
352 African Collared-Dove 1 25 Jun 2018 Ted Floyd N
 
Waneka Lake/Greenlee Preserve, Boulder
353 Yellow-throated Warbler 1 24 Jun 2018 Cameron Carver N
 
Mineral Palace Park, Pueblo
Yellow-billed/Black-billed Cuckoo 1 19 Jun 2018 David Fries
 
Arkansas River Trail--east of Pueblo Blvd, Pueblo
354 White-rumped Sandpiper 1 18 Jun 2018 David Suddjian P
 
Red Lion State Wildlife Area, Logan
Western x Eastern Wood-Pewee (hybrid) 1 16 Jun 2018 Steven Mlodinow P
 
Tamarack Ranch State Wildlife Area, Logan
355 Eastern Towhee 1 16 Jun 2018 Steven Mlodinow N
 
Tamarack Ranch State Wildlife Area, Logan
356 Pacific Loon 1 12 Jun 2018 Eric Wood P
 
24032 U.S. 50, Gunnison, Colorado, US (38.477, -107.176), Gunnison
357 Red-breasted Merganser 1 11 Jun 2018 David Tønnessen N
 
Antero Reservoir, Park
Mallard x Mexican Duck (hybrid) 1 9 Jun 2018 Ted Floyd P
 
Beaver Pond--Telluride, San Miguel
358 Pyrrhuloxia 1 9 Jun 2018 Steven Mlodinow N
 
Purgatoire River W of Alejandro Canyon, Las Animas
Eurasian/American Wigeon 2 9 Jun 2018 Jen S
 
Belmar Park, Jefferson
359 California Quail 1 8 Jun 2018 Loch Kilpatrick N
 
Dinosaur National Monument--Canyon Area Visitor Center, Moffat
Blue-winged x Cinnamon Teal (hybrid) 1 5 Jun 2018 Deborah Ellis
 
Rocky Mountain National Park, Granby US-CO (40.2565,-105.8087), Grand
swan sp. 1 2 Jun 2018 connee moffatt N
 
James M. Robb Colorado River SP--Pear Park section, Mesa
360 Ruddy Turnstone 1 29 May 2018 Lori Pivonka N
 
Arapahoe Bend Natural Area--Rigden Reservoir (Strauss Cabin Lake), Larimer
Northern Bobwhite x Scaled Quail (hybrid) 1 29 May 2018 Steven Mlodinow P
 
Lower Queens Reservoir, Kiowa
361 White-eyed Vireo 1 28 May 2018 Marcia Watson N
 
Ophir Creek Road, Custer
362 Scarlet Tanager 1 27 May 2018 Steven Mlodinow P
 
Kiowa Creek at Kiowa CR 40, Kiowa
363 Whimbrel 2 25 May 2018 Van Truan N
 
Neenoshe Reservoir, Kiowa
364 Wood Thrush 1 25 May 2018 Gene Rutherford P
 
US-Colorado-Raymer-65858 County Road 116 - 40.832x-103.803, Weld
365 Golden-crowned Warbler 1 24 May 2018 Marcel Such N
 
Mitchek Ranch (private, view from road; also stakeout Golden-crowned Warbler, 2018), Cheyenne
366 Worm-eating Warbler 1 23 May 2018 Glenn Walbek N
 
Flagler Reservoir State Wildlife Area, Kit Carson
367 Yellow-throated Vireo 1 23 May 2018 mark yaeger N
 
Runyon Lake, Pueblo
368 Scissor-tailed Flycatcher 1 22 May 2018 Heidi Burgess P
 
South Boulder Creek Trail in Boulder, CO, Boulder
Cliff/Cave Swallow 1 21 May 2018 Marcel Such
 
Comanche National Grassland (Baca County section), Baca
369 Kentucky Warbler 1 20 May 2018 Steven Mlodinow N
 
Kiowa Creek at Kiowa CR 40, Kiowa
370 Black-throated Green Warbler 1 20 May 2018 Chris Gilbert P
 
Flagler Reservoir State Wildlife Area, Kit Carson
371 Blue-winged Warbler 1 20 May 2018 Steve Larson N
 
Prewitt Reservoir (Logan Co.), Logan
372 Bay-breasted Warbler 1 20 May 2018 Gregg Goodrich N
 
Sylvan Dale Guest Ranch (private), Larimer
373 Mourning Warbler 1 18 May 2018 Doug Faulkner N
 
Mitchek Ranch (private, view from road; also stakeout Golden-crowned Warbler, 2018), Cheyenne
crossbill sp. 10 16 May 2018 Tanja Britton
 
Home, El Paso
374 Harris's Sparrow 1 16 May 2018 Barbara Seibert P
 
7220 Scamp Ct, Fort Collins, CO, Larimer
375 Red-necked Grebe 1 15 May 2018 Casey Setash P
 
Cowdrey Pond, Jackson
376 White-throated Sparrow 1 15 May 2018 Jim Merritt
 
Chico Basin Ranch (Pueblo Co.), Pueblo
377 Cape May Warbler 1 15 May 2018 Jane Stulp P
 
Farm Yard, Prowers
378 Trumpeter Swan 1 14 May 2018 Matt Clark N
 
Pinon Lake Reservoir, Archuleta
379 Laughing Gull 1 14 May 2018 Glenn Walbek P
 
Burlington WTP, Kit Carson
Chimney/Vaux's Swift 1 13 May 2018 Van Truan
 
19th & Court Street Pueblo, Pueblo
380 Golden-crowned Sparrow 1 13 May 2018 Glenn Walbek P
 
High Line Canal Trail, Littleton, Colorado, US (39.527, -105.048), Douglas
381 Sedge Wren 1 12 May 2018 David Dowell P
 
Hale Crossroads, Yuma
Gadwall x Mallard (hybrid) 1 9 May 2018 Steven Mlodinow N
 
May Ranch, northwest, Prowers
Zonotrichia sp. 1 7 May 2018 Ted Floyd N
 
University of Colorado campus--Confluence Ponds and Skunk Creek, Boulder
382