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Bird Observations

Date Range:
Dec, 1900-2060

Castle Rock

Updated ~16 hr(s) ago.

30 species (+3 other taxa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Brant  
Canada Goose  
American Black Duck  
Common Eider  
Surf Scoter  
White-winged Scoter  
Black Scoter  
Surf/Black Scoter  
scoter sp.  
Long-tailed Duck  
Bufflehead  
Common Goldeneye  
Red-breasted Merganser  
Horned Grebe  
Rock Pigeon  
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Black Guillemot  
Bonaparte's Gull  
Ring-billed Gull  
Herring Gull  
Glaucous Gull  
Great Black-backed Gull  
gull sp.  
Red-throated Loon  
Common Loon  
Northern Gannet  
Great Cormorant  
American Crow  
Black-capped Chickadee  
European Starling  
Northern Mockingbird  
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
House Sparrow  
Song Sparrow  
Northern Cardinal  

KEY:| = insufficient data | = rare to widespread

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