« Start Over

Bird Observations

Date Range:
Feb, 1900-2060

Castle Rock

Updated ~24 hr(s) ago.

38 species (+2 other taxa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Brant  
Canada Goose  
Domestic goose sp. x Canada Goose (hybrid)  
American Black Duck  
Greater Scaup  
Common Eider  
Surf Scoter  
White-winged Scoter  
Black Scoter  
scoter sp.  
Bufflehead  
Common Goldeneye  
Red-breasted Merganser  
Horned Grebe  
Red-necked Grebe  
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Eared Grebe  
Mourning Dove  
Purple Sandpiper  
Razorbill  
Black Guillemot  
Ring-billed Gull  
Herring Gull  
Iceland Gull  
Great Black-backed Gull  
Red-throated Loon  
Common Loon  
Great Cormorant  
Blue Jay  
American Crow  
Black-capped Chickadee  
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Carolina Wren  
European Starling  
Northern Mockingbird  
American Robin  
House Sparrow  
House Finch  
Savannah Sparrow  
Song Sparrow  
Common Grackle  
Northern Cardinal  

KEY:| = insufficient data | = rare to widespread

Download Histogram Data