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Bird Observations

Date Range:
Apr, 1900-2060

Castle Rock

Updated ~19 hr(s) ago.

55 species (+4 other taxa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Brant  
Canada Goose  
Mallard  
American Black Duck  
Common Eider  
Surf Scoter  
White-winged Scoter  
Black Scoter  
Surf/Black Scoter  
scoter sp.  
Long-tailed Duck  
Bufflehead  
Red-breasted Merganser  
Wild Turkey  
Horned Grebe  
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Red-necked Grebe  
Rock Pigeon  
Mourning Dove  
Purple Sandpiper  
Black Guillemot  
Ring-billed Gull  
Herring Gull  
Great Black-backed Gull  
gull sp.  
Red-throated Loon  
Common Loon  
Northern Gannet  
Great Cormorant  
Double-crested Cormorant  
cormorant sp.  
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Great Blue Heron  
Great Egret  
Northern Harrier  
Yellow-bellied Sapsucker  
Downy Woodpecker  
Northern Flicker  
American Kestrel  
Blue Jay  
American Crow  
Fish Crow  
Black-capped Chickadee  
Northern Rough-winged Swallow  
Tree Swallow  
Red-breasted Nuthatch  
Carolina Wren  
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
European Starling  
Northern Mockingbird  
American Robin  
House Sparrow  
House Finch  
American Goldfinch  
Dark-eyed Junco  
White-throated Sparrow  
Savannah Sparrow  
Song Sparrow  
Red-winged Blackbird  
Brown-headed Cowbird  
Common Grackle  
Northern Cardinal  

KEY:| = insufficient data | = rare to widespread

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