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Bird Observations

			Date Range: Jan-Dec, 1900-2023

Arvada Blunn Reservoir

Updated ~34 hr(s) ago.

192 species (+28 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Snow Goose
Greater White-fronted Goose
Cackling Goose
Canada Goose
Cackling/Canada Goose
Trumpeter Swan
Tundra Swan
Trumpeter/Tundra Swan
Wood Duck
Blue-winged Teal
Cinnamon Teal
Northern Shoveler
Gadwall
American Wigeon
Mallard
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Northern Pintail
Green-winged Teal
dabbling duck sp.
Canvasback
Redhead
Ring-necked Duck
Greater Scaup
Lesser Scaup
Greater/Lesser Scaup
Surf Scoter
Bufflehead
Common Goldeneye
Barrow's Goldeneye
Hooded Merganser
Common Merganser
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Red-breasted Merganser
Common/Red-breasted Merganser
Ruddy Duck
duck sp.
Wild Turkey
Pied-billed Grebe
Horned Grebe
Red-necked Grebe
Eared Grebe
Horned/Eared Grebe
Western Grebe
Clark's Grebe
Western/Clark's Grebe
grebe sp.
Rock Pigeon
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Eurasian Collared-Dove
Mourning Dove
Common Nighthawk
White-throated Swift
Black-chinned Hummingbird
Ruby-throated/Black-chinned Hummingbird
Broad-tailed Hummingbird
hummingbird sp.
Virginia Rail
American Coot
Sandhill Crane
American Avocet
Killdeer
Semipalmated Plover
Long-billed Curlew
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Marbled Godwit
Long-billed Dowitcher
Wilson's Snipe
Wilson's Phalarope
Spotted Sandpiper
Solitary Sandpiper
Lesser Yellowlegs
Willet
Greater Yellowlegs
Sanderling
Least Sandpiper
Pectoral Sandpiper
Franklin's Gull
Ring-billed Gull
Herring Gull
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Great Black-backed Gull
Glaucous Gull
Lesser Black-backed Gull
California Gull
Iceland Gull
Larus sp.
gull sp.
Pacific Loon
Common Loon
Double-crested Cormorant
American White Pelican
Black-crowned Night Heron
Snowy Egret
Great Blue Heron
White-faced Ibis
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Turkey Vulture
Osprey
Golden Eagle
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Cooper's Hawk/American Goshawk
Bald Eagle
Swainson's Hawk
Red-tailed Hawk
Rough-legged Hawk
Ferruginous Hawk
Buteo sp.
Buteo/eagle sp.
hawk sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Great Horned Owl
Burrowing Owl
Belted Kingfisher
Red-naped Sapsucker
Downy Woodpecker
Hairy Woodpecker
Northern Flicker
American Kestrel
Merlin
Peregrine Falcon
Prairie Falcon
Olive-sided Flycatcher
Western Wood-Pewee
Willow Flycatcher
Hammond's Flycatcher
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Dusky Flycatcher
Hammond's/Dusky Flycatcher
Western Flycatcher
Empidonax sp.
Black Phoebe
Say's Phoebe
Western Kingbird
Eastern Kingbird
Warbling Vireo
Loggerhead Shrike
Northern Shrike
Blue Jay
Woodhouse's Scrub-Jay
Black-billed Magpie
American Crow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Common Raven
raven sp.
crow/raven sp.
Black-capped Chickadee
Mountain Chickadee
Horned Lark
Bank Swallow
Tree Swallow
Violet-green Swallow
Northern Rough-winged Swallow
Barn Swallow
Cliff Swallow
swallow sp.
Bushtit
Ruby-crowned Kinglet
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
White-breasted Nuthatch
Red-breasted Nuthatch
Blue-gray Gnatcatcher
Rock Wren
House Wren
Marsh Wren
wren sp.
European Starling
Gray Catbird
Brown Thrasher
Sage Thrasher
Western Bluebird
Mountain Bluebird
Townsend's Solitaire
Swainson's Thrush
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hermit Thrush
American Robin
thrush sp.
Cedar Waxwing
House Sparrow
American Pipit
House Finch
Pine Siskin
Lesser Goldfinch
American Goldfinch
Chipping Sparrow
Clay-colored Sparrow
Brewer's Sparrow
Lark Sparrow
Lark Bunting
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
American Tree Sparrow
Dark-eyed Junco
White-crowned Sparrow
Vesper Sparrow
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
Green-tailed Towhee
Spotted Towhee
new world sparrow sp.
Yellow-breasted Chat
Yellow-headed Blackbird
Bobolink
Western Meadowlark
Sturnella meadowlark sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Bullock's Oriole
Red-winged Blackbird
Brown-headed Cowbird
Brewer's Blackbird
Common Grackle
Great-tailed Grackle
Orange-crowned Warbler
Virginia's Warbler
MacGillivray's Warbler
Common Yellowthroat
American Redstart
Northern Parula
Yellow Warbler
Chestnut-sided Warbler
Palm Warbler
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Yellow-rumped Warbler
Black-throated Gray Warbler
Wilson's Warbler
new world warbler sp.
Western Tanager
Rose-breasted Grosbeak
Black-headed Grosbeak
Blue Grosbeak
Lazuli Bunting
passerine sp.

KEY:| = insufficient data | = rare to widespread

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