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Bird Observations

Date Range:
Dec, 1900-2060

Castle Island & Pleasure Bay

Updated ~15 hr(s) ago.

73 species (+13 other taxa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Brant  
Canada Goose  
Mute Swan  
Mallard  
American Black Duck  
Mallard/American Black Duck  
Greater Scaup  
Lesser Scaup  
Greater/Lesser Scaup  
Common Eider  
Harlequin Duck  
Surf Scoter  
White-winged Scoter  
Black Scoter  
Surf/Black Scoter  
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
scoter sp.  
Long-tailed Duck  
Bufflehead  
Common Goldeneye  
Barrow's Goldeneye  
Hooded Merganser  
Red-breasted Merganser  
Common/Red-breasted Merganser  
merganser sp.  
Ruddy Duck  
duck sp.  
Pied-billed Grebe  
Horned Grebe  
Red-necked Grebe  
Rock Pigeon  
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mourning Dove  
Ruddy Turnstone  
Sanderling  
Dunlin  
Purple Sandpiper  
shorebird sp.  
Razorbill  
alcid sp.  
Bonaparte's Gull  
Ring-billed Gull  
Herring Gull  
Iceland Gull  
Great Black-backed Gull  
gull sp.  
Red-throated Loon  
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Common Loon  
loon sp.  
Double-crested Cormorant  
Great Blue Heron  
Northern Harrier  
Cooper's Hawk  
Bald Eagle  
Red-tailed Hawk  
hawk sp.  
Snowy Owl  
Belted Kingfisher  
Red-bellied Woodpecker  
Downy Woodpecker  
American Kestrel  
Merlin  
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Peregrine Falcon  
Blue Jay  
American Crow  
Common Raven  
Black-capped Chickadee  
Tufted Titmouse  
Horned Lark  
Golden-crowned Kinglet  
White-breasted Nuthatch  
European Starling  
Gray Catbird  
Northern Mockingbird  
American Robin  
House Sparrow  
House Finch  
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
American Goldfinch  
Snow Bunting  
American Tree Sparrow  
Dark-eyed Junco  
White-throated Sparrow  
Savannah Sparrow  
Song Sparrow  
Swamp Sparrow  
sparrow sp.  
Yellow-rumped Warbler  
Northern Cardinal  

KEY:| = insufficient data | = rare to widespread

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