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Bird Observations

			Date Range: Sep, 1900-2022

Boulder Reservoir complex--Boulder Reservoir

Updated ~34 hr(s) ago.

154 species (+34 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Canada Goose
Cackling/Canada Goose
Wood Duck
Mandarin Duck
Blue-winged Teal
Cinnamon Teal
Blue-winged/Cinnamon Teal
Northern Shoveler
Gadwall
American Wigeon
Mallard
Northern Pintail
Green-winged Teal
teal sp.
dabbling duck sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Redhead
Ring-necked Duck
Lesser Scaup
Aythya sp.
Hooded Merganser
Common Merganser
Ruddy Duck
duck sp.
Pied-billed Grebe
Horned Grebe
Red-necked Grebe
Eared Grebe
Horned/Eared Grebe
Western Grebe
Clark's Grebe
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Western/Clark's Grebe
grebe sp.
Rock Pigeon
Eurasian Collared-Dove
Mourning Dove
pigeon/dove sp.
Chimney Swift
Broad-tailed Hummingbird
Virginia Rail
Sora
American Coot
Sandhill Crane
American Avocet
Black-bellied Plover
American Golden-Plover
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Killdeer
Semipalmated Plover
Marbled Godwit
Long-billed Dowitcher
Wilson's Snipe
Wilson's Phalarope
Red Phalarope
Red-necked Phalarope
Spotted Sandpiper
Solitary Sandpiper
Lesser Yellowlegs
Willet
Greater Yellowlegs
Sanderling
Baird's Sandpiper
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Least Sandpiper
peep sp.
Calidris sp.
shorebird sp.
Long-tailed Jaeger
jaeger sp.
Sabine's Gull
Franklin's Gull
Ring-billed Gull
Herring Gull
Lesser Black-backed Gull
California Gull
Larus sp.
gull sp.
Least Tern
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Caspian Tern
Black Tern
Forster's Tern
Arctic Tern
Common Tern
Common/Arctic Tern
Sterna sp.
tern sp.
Common Loon
Double-crested Cormorant
American White Pelican
Brown Pelican
American Bittern
Snowy Egret
Western Cattle Egret
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Great Egret
Great Blue Heron
white egret sp.
White-faced Ibis
Glossy/White-faced Ibis
Turkey Vulture
Osprey
Golden Eagle
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Bald Eagle
Broad-winged Hawk
Swainson's Hawk
Red-tailed Hawk
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Ferruginous Hawk
Buteo sp.
hawk sp.
Great Horned Owl
Belted Kingfisher
Downy Woodpecker
Hairy Woodpecker
Northern Flicker
American Kestrel
Merlin
Peregrine Falcon
Prairie Falcon
large falcon sp.
Western Wood-Pewee
pewee sp. (Contopus sp.)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Say's Phoebe
Cassin's Kingbird
Western Kingbird
Eastern Kingbird
Cassin's Vireo
Blue Jay
Black-billed Magpie
American Crow
Common Raven
crow/raven sp.
Black-capped Chickadee
Horned Lark
Bank Swallow
Tree Swallow
Violet-green Swallow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Barn Swallow
Cliff Swallow
swallow sp.
Blue-gray Gnatcatcher
Rock Wren
House Wren
Marsh Wren
European Starling
Gray Catbird
Sage Thrasher
Eastern Bluebird
Mountain Bluebird
bluebird sp.
American Robin
Cedar Waxwing
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
House Sparrow
American Pipit
House Finch
Pine Siskin
Lesser Goldfinch
American Goldfinch
Chestnut-collared Longspur
Thick-billed Longspur
Chipping Sparrow
Clay-colored Sparrow
Brewer's Sparrow
Spizella sp.
Lark Sparrow
Lark Bunting
White-crowned Sparrow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Vesper Sparrow
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
Spotted Towhee
new world sparrow sp.
Yellow-headed Blackbird
Western Meadowlark
Red-winged Blackbird
Brewer's Blackbird
Common Grackle
blackbird sp.
Orange-crowned Warbler
MacGillivray's Warbler
Common Yellowthroat
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Magnolia Warbler
Yellow Warbler
Yellow-rumped Warbler
Wilson's Warbler
new world warbler sp.
Western Tanager
Lazuli/Indigo Bunting
passerine sp.

KEY:| = insufficient data | = rare to widespread

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