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Bird Observations

			Date Range: Aug, 1900-2022

Boulder Reservoir complex--Boulder Reservoir

Updated ~28 hr(s) ago.

123 species (+22 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Canada Goose
Wood Duck
Blue-winged Teal
Cinnamon Teal
Blue-winged/Cinnamon Teal
Northern Shoveler
Gadwall
American Wigeon
Mallard
Mallard/Mexican Duck
Northern Pintail
Green-winged Teal
teal sp.
dabbling duck sp.
Hooded Merganser
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Common Merganser
Ruddy Duck
duck sp.
Pied-billed Grebe
Eared Grebe
Horned/Eared Grebe
Western Grebe
Clark's Grebe
Western/Clark's Grebe
Rock Pigeon
Eurasian Collared-Dove
Mourning Dove
Broad-tailed Hummingbird
hummingbird sp.
Sora
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
American Coot
Killdeer
Long-billed Curlew
Long-billed Dowitcher
Wilson's Snipe
Wilson's Phalarope
Spotted Sandpiper
Solitary Sandpiper
Lesser Yellowlegs
Willet
Greater Yellowlegs
Stilt Sandpiper
Baird's Sandpiper
Least Sandpiper
Pectoral Sandpiper
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Semipalmated Sandpiper
peep sp.
shorebird sp.
Franklin's Gull
Ring-billed Gull
Herring Gull
California Gull
Larus sp.
gull sp.
Black Tern
Forster's Tern
Sterna sp.
tern sp.
Double-crested Cormorant
American White Pelican
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
American Bittern
Snowy Egret
Great Egret
Great Blue Heron
Turkey Vulture
Osprey
Golden Eagle
Northern Harrier
Cooper's Hawk
Sharp-shinned/Cooper's Hawk
Bald Eagle
Swainson's Hawk
Red-tailed Hawk
Ferruginous Hawk
Buteo sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
hawk sp.
Great Horned Owl
Belted Kingfisher
Downy Woodpecker
Hairy Woodpecker
Northern Flicker
American Kestrel
Peregrine Falcon
Prairie Falcon
Western Wood-Pewee
Say's Phoebe
Western Kingbird
Eastern Kingbird
Warbling Vireo
Steller's Jay
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Blue Jay
Black-billed Magpie
American Crow
Common Raven
Black-capped Chickadee
Mountain Chickadee
Horned Lark
Tree Swallow
Violet-green Swallow
Northern Rough-winged Swallow
Barn Swallow
Cliff Swallow
swallow sp.
Bushtit
White-breasted Nuthatch
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pygmy Nuthatch
Blue-gray Gnatcatcher
House Wren
European Starling
Sage Thrasher
Western Bluebird
American Robin
House Sparrow
American Pipit
House Finch
Lesser Goldfinch
American Goldfinch
Grasshopper Sparrow
Chipping Sparrow
Clay-colored Sparrow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Brewer's Sparrow
Spizella sp.
Black-throated Sparrow
Lark Sparrow
Lark Bunting
White-crowned Sparrow
Vesper Sparrow
Savannah Sparrow
Song Sparrow
new world sparrow sp.
Yellow-headed Blackbird
Western Meadowlark
Red-winged Blackbird
Brown-headed Cowbird
Brewer's Blackbird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Common Grackle
blackbird sp.
Common Yellowthroat
Yellow Warbler
Yellow-rumped Warbler
Wilson's Warbler
Blue Grosbeak
Lazuli Bunting
Indigo Bunting
passerine sp.

KEY:| = insufficient data | = rare to widespread

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