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Bird Observations

Date Range:
Jan-Dec, 1900-2022

Castle Island & Pleasure Bay

Updated ~18 hr(s) ago.

159 species (+31 other taxa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Ross's Goose
Brant
Canada Goose
goose sp.
Mute Swan
Wood Duck
Mallard
American Black Duck
Mallard x American Black Duck (hybrid)
Mallard/American Black Duck
Green-winged Teal
Ring-necked Duck
Greater Scaup
Lesser Scaup
Greater/Lesser Scaup
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
King Eider
Common Eider
Harlequin Duck
Surf Scoter
White-winged Scoter
Black Scoter
Surf/Black Scoter
scoter sp.
Long-tailed Duck
Bufflehead
Common Goldeneye
Barrow's Goldeneye
Common/Barrow's Goldeneye
Hooded Merganser
Red-breasted Merganser
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Common/Red-breasted Merganser
merganser sp.
Ruddy Duck
duck sp.
Wild Turkey
Pied-billed Grebe
Horned Grebe
Red-necked Grebe
grebe sp.
Rock Pigeon
Mourning Dove
Common Nighthawk
Chimney Swift
American Oystercatcher
Black-bellied Plover
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
American Golden-Plover
Black-bellied Plover/golden-plover sp.
Semipalmated Plover
Piping Plover
Killdeer
Whimbrel
Ruddy Turnstone
Stilt Sandpiper
Sanderling
Dunlin
Purple Sandpiper
Least Sandpiper
White-rumped Sandpiper
Buff-breasted Sandpiper
Pectoral Sandpiper
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Semipalmated Sandpiper
peep sp.
Short-billed Dowitcher
Spotted Sandpiper
Greater Yellowlegs
Willet
Lesser Yellowlegs
shorebird sp.
Thick-billed Murre
Razorbill
alcid sp.
Bonaparte's Gull
Laughing Gull
Ring-billed Gull
Herring Gull
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Iceland Gull
Lesser Black-backed Gull
Great Black-backed Gull
gull sp.
Least Tern
Caspian Tern
Common Tern
Forster's Tern
Sterna sp.
tern sp.
Black Skimmer
Red-throated Loon
Common Loon
loon sp.
Manx Shearwater
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Northern Gannet
Great Cormorant
Double-crested Cormorant
cormorant sp.
Brown Pelican
Great Blue Heron
Great Egret
Snowy Egret
Green Heron
Black-crowned Night-Heron
Yellow-crowned Night-Heron
Glossy Ibis
Turkey Vulture
Osprey
Northern Harrier
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sharp-shinned Hawk
Cooper's Hawk
Accipiter sp.
Bald Eagle
Red-shouldered Hawk
Red-tailed Hawk
Buteo sp.
hawk sp.
Snowy Owl
Belted Kingfisher
Yellow-bellied Sapsucker
Red-bellied Woodpecker
Downy Woodpecker
Northern Flicker
American Kestrel
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Merlin
Peregrine Falcon
falcon sp.
Eastern Phoebe
Eastern Kingbird
flycatcher sp. (Tyrannidae sp.)
Blue-headed Vireo
Warbling Vireo
Blue Jay
American Crow
Fish Crow
crow sp.
Common Raven
Black-capped Chickadee
Tufted Titmouse
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Horned Lark
Northern Rough-winged Swallow
Tree Swallow
Barn Swallow
Cave Swallow
swallow sp.
Ruby-crowned Kinglet
Golden-crowned Kinglet
Red-breasted Nuthatch
White-breasted Nuthatch
Brown Creeper
Carolina Wren
European Starling
Gray Catbird
Northern Mockingbird
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hermit Thrush
American Robin
Cedar Waxwing
House Sparrow
American Pipit
House Finch
House/Purple Finch
Common Redpoll
American Goldfinch
Lapland Longspur
Snow Bunting
Chipping Sparrow
American Tree Sparrow
Dark-eyed Junco
White-throated Sparrow
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Savannah Sparrow
Song Sparrow
Swamp Sparrow
Eastern Towhee
sparrow sp.
Bobolink
Baltimore Oriole
Red-winged Blackbird
Brown-headed Cowbird
Common Grackle
Blue-winged Warbler
Common Yellowthroat
American Redstart
Northern Parula
Bay-breasted Warbler
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Yellow Warbler
Blackpoll Warbler
Black-throated Blue Warbler
Palm Warbler
Pine Warbler
Yellow-rumped Warbler
warbler sp. (Parulidae sp.)
Northern Cardinal
Rose-breasted Grosbeak
passerine sp.

KEY:| = insufficient data | = rare to widespread

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