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Top hotspots

Top regions sorted by number of observed species
Rank Region Species Species
1 Walden Ponds Wildlife Habitat--Walden & Sawhill Ponds all together
291
2 Walden Ponds Wildlife Habitat--Cottonwood Marsh/Wally Tove's Pond/Duck Pond
268
3 Waneka Lake/Greenlee Preserve
261
4 Boulder Reservoir complex--Boulder Reservoir
246
5 Golden Ponds Park and Nature Area
244
6 Lagerman Agricultural Preserve--Lagerman Reservoir
234
7 Walden Ponds Wildlife Habitat--Sawhill Ponds only
225
8 McIntosh Lake
222
9 East Boulder Trail--Teller Lakes
219
10 Pella Crossing Open Space
212
11 Twin Lakes (Boulder County)
212
12 White Rocks Trail area
210
13 Jim Hamm Nature Area
203
14 Baseline Reservoir
200
15 Valmont Reservoir Complex
200
16 Louisville (town)
199
17 Boulder Creek--75th St.
198
18 Boulder Creek--CU East Campus
195
19 Stearns Lake
190
20 Old Saint Vrain Rd
187
21 Panama Reservoir #1
183
22 Boulder Creek--University of Colorado campus
179
23 Rabbit Mountain
179
24 University of Colorado campus--Confluence Ponds and Skunk Creek
178
25 South Mesa Trail
175
26 Doudy Draw
172
27 Mesa Trail Complex
172
28 University of Colorado Boulder--South Campus
171
29 Lyons (town)
170
30 Sombrero Marsh & Pond
170
31 Prince Lake #2
168
32 Pleasant View Marsh
167
33 Gregory Canyon
166
34 Bobolink Trail
165
35 Boulder Reservoir complex--Coot Lake
164
36 St. Vrain Greenway
164
37 Carolyn Holmberg Preserve & Rock Creek Farms
163
38 Teller Lakes South
163
39 Rogers Grove Park
162
40 Eldorado Mountain Open Space
161
41 Skunk Canyon Trails
160
42 Chautauqua Park
159
43 Crane Hollow Road and ponds
156
44 Valmont Overlook (Legion Park)
156
45 Waneka Lake/Greenlee Preserve--Waneka Lake only
151
46 Walden Ponds Wildlife Habitat--Boulder Creek/Heatherwood Trail
150
47 Apple Valley Rd.
149
48 Little Gaynor Lake
148
49 Hecla Lake
146
50 Boulder Reservoir complex--Sixmile Reservoir
145
51 Heil Valley Ranch
145
52 Ish Reservoir (Larimer/Boulder cos.)
145
53 Rocky Mountain NP--Wild Basin area
145
54 Walker Ranch--Meyers Gulch
143
55 Clover Basin Reservoir
141
56 Foothills Reservoir & McCaslin Lake area
141
57 Boulder Valley Ranch
139
58 Eldorado Canyon SP
139
59 Wonderland Lake Park
139
60 Lagerman Agricultural Preserve--Swede Lakes
138
61 Warembourg Open Space
138
62 Boulder Creek--109th St.
136
63 Terry Lake
136
64 Brainard Lake
133
65 Dodd Reservoir
132
66 Hodgson-Harris Reservoir
131
67 Boulder Mountain Park--Bear Canyon Trail
129
68 Mayhoffer Singletree Trail
129
69 South Boulder Creek Trail
128
70 St. Vrain River Crossing at 63rd St.
128
71 East Boulder Community Park
127
72 McCall Lake
127
73 Waneka Lake/Greenlee Preserve--Greenlee Only
124
74 Eldorado Mountain Open Space--Goshawk Ridge Trail
123
75 Eldorado Mountain Open Space--Spring Brook Loop
123
76 South Boulder Creek Trail Area
123
77 University of Colorado Boulder--Varsity Pond area
123
78 Boulder Creek--Foothills Parkway & Arapahoe Ave. area
122
79 Joder Ranch
122
80 Marshall Marsh
122
81 Betasso Preserve
120
82 City of Boulder Open Space & Mountain Parks, Cherryvale Office area
119
83 Cottonwood Trail--Hayden Lake to Jay Rd.
119
84 Sanitas Valley Trail
119
85 Bohn Park
117
86 Erie Reservoir
117
87 North Open Space
117
88 Allenspark (town)
115
89 South 66th St
115
90 Boulder Creek--61st St.
114
91 Button Rock Preserve
114
92 Caribou Ranch Open Space
114
93 Ward area
114
94 Ball Brothers Woods (historic; closed to public)
113
95 Hall Ranch--South
113
96 Boulder Mountain Park
112
97 University of Colorado Boulder--Main Campus
112
98 Boulder Community Garden
111
99 Dry Creek Open Space
111
100 Hall Ranch
111

Top media

Uploaded in last 7 days

Recent visits

Explore recent checklists of birds in this area.
Observer Date Species
Steven Mlodinow 4 Mar 2021 1
Sue Riffe 4 Mar 2021 23
Eric DeFonso 4 Mar 2021 6
Will Anderson 4 Mar 2021 1
Catherine Labio 4 Mar 2021 7
Leslie S 4 Mar 2021 3
Sue Riffe 4 Mar 2021 7
Ted Floyd 4 Mar 2021 46
Sheridan Samano 4 Mar 2021 3
David Waltman 4 Mar 2021 2

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Top eBirders

Top eBirders sorted by number of observed species
Rank eBirder Total
1 Peter Gent
383
2 William Kaempfer
375
3 John Vanderpoel
373
4 Christian Nunes
369
4 Maggie Boswell
369
6 Todd Deininger
368
7 David Waltman
365
8 Alexander Brown
362
9 Ted Floyd
359
10 Peter Burke
348