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Bird Observations

Date Range:
Jan, 1900-2060

Castle Rock

Updated ~26 hr(s) ago.

42 species (+3 other taxa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Brant  
Canada Goose  
Mallard  
American Black Duck  
King Eider  
Common Eider  
Harlequin Duck  
Surf Scoter  
White-winged Scoter  
Black Scoter  
Surf/Black Scoter  
scoter sp.  
Long-tailed Duck  
Bufflehead  
Common Goldeneye  
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Red-breasted Merganser  
Horned Grebe  
Red-necked Grebe  
Purple Sandpiper  
Razorbill  
Black Guillemot  
Ring-billed Gull  
Herring Gull  
Iceland Gull  
Great Black-backed Gull  
Red-throated Loon  
Common Loon  
Northern Gannet  
Great Cormorant  
cormorant sp.  
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Bald Eagle  
Red-tailed Hawk  
Downy Woodpecker  
Peregrine Falcon  
Blue Jay  
American Crow  
Black-capped Chickadee  
Carolina Wren  
European Starling  
Northern Mockingbird  
American Robin  
Snow Bunting  
White-throated Sparrow  
Song Sparrow  
Northern Cardinal  

KEY:| = insufficient data | = rare to widespread

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