« Start Over

Bird Observations

Date Range:
Jan-Dec, 1900-2022

Castle Rock

Updated ~18 hr(s) ago.

131 species (+12 other taxa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Brant
Canada Goose
Domestic goose sp. (Domestic type) x Canada Goose (hybrid)
Mallard
American Black Duck
Green-winged Teal
Greater Scaup
King Eider
Common Eider
Harlequin Duck
Surf Scoter
White-winged Scoter
Black Scoter
Surf/Black Scoter
scoter sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Long-tailed Duck
Bufflehead
Common Goldeneye
Common Merganser
Red-breasted Merganser
Wild Turkey
Horned Grebe
Red-necked Grebe
Eared Grebe
Rock Pigeon
Mourning Dove
Chimney Swift
American Oystercatcher
Semipalmated Plover
Killdeer
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Whimbrel
Ruddy Turnstone
Red Knot
Sanderling
Dunlin
Purple Sandpiper
Semipalmated Sandpiper
American Woodcock
Spotted Sandpiper
Solitary Sandpiper
Greater Yellowlegs
shorebird sp.
Razorbill
Black Guillemot
Black-legged Kittiwake
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Bonaparte's Gull
Laughing Gull
Ring-billed Gull
Herring Gull
Iceland Gull
Lesser Black-backed Gull
Glaucous Gull
Great Black-backed Gull
gull sp.
Least Tern
Black Tern
Common Tern
Sterna sp.
tern sp.
Red-throated Loon
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Common Loon
loon sp.
Wilson's Storm-Petrel
Leach's Storm-Petrel
Cory's Shearwater
Great Shearwater
Sooty Shearwater
Manx Shearwater
Northern Gannet
Great Cormorant
Double-crested Cormorant
cormorant sp.
Great Blue Heron
Great Egret
Snowy Egret
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Black-crowned Night-Heron
Glossy Ibis
Turkey Vulture
Osprey
Northern Harrier
Cooper's Hawk
Bald Eagle
Red-shouldered Hawk
Red-tailed Hawk
Snowy Owl
Yellow-bellied Sapsucker
Downy Woodpecker
Northern Flicker
American Kestrel
Merlin
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Peregrine Falcon
Great Crested Flycatcher
Eastern Kingbird
Red-eyed Vireo
Blue Jay
American Crow
Fish Crow
Black-capped Chickadee
Northern Rough-winged Swallow
Tree Swallow
Bank Swallow
Barn Swallow
Cliff Swallow
Ruby-crowned Kinglet
Golden-crowned Kinglet
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Ruby-crowned/Golden-crowned Kinglet
Red-breasted Nuthatch
White-breasted Nuthatch
House Wren
Carolina Wren
European Starling
Gray Catbird
Northern Mockingbird
American Robin
Cedar Waxwing
House Sparrow
American Pipit
House Finch
Purple Finch
Pine Siskin
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
American Goldfinch
Snow Bunting
Dark-eyed Junco
White-throated Sparrow
Savannah Sparrow
Song Sparrow
Swamp Sparrow
sparrow sp.
Baltimore Oriole
Red-winged Blackbird
Brown-headed Cowbird
Common Grackle
Common Yellowthroat
American Redstart
Cape May Warbler
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Yellow Warbler
Blackpoll Warbler
Palm Warbler
Pine Warbler
Yellow-rumped Warbler
warbler sp. (Parulidae sp.)
Northern Cardinal
Dickcissel

KEY:| = insufficient data | = rare to widespread

Download Histogram Data