I've tried not to add in any 'leader-onlys' to this list, but have included all species seen by at least some of the group while we were together.
Canada Goose
Brent Goose
Mute Swan
Gadwall
American Wigeon
American Black Duck
Mallard
Northern Shoveler
Northern Pintail
Green-winged Teal
Ring-necked Duck
Lesser Scaup
Common Eider
Surf Scoter
White-winged Scoter
Black Scoter
Long-tailed Duck
Bufflehead
Hooded Merganser
Common Merganser
Red-breasted Merganser
Red-throated Loon
Common Loon
Pied-billed Grebe
Horned Grebe
Great Blue Heron
Great Egret
Northern Gannet
Double-crested Cormorant
Great Cormorant
Turkey Vulture
American Black Vulture
Peregrine
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Red-shouldered Hawk
Red-tailed Hawk
American Coot
American Oystercatcher
Black-bellied Plover
Semipalmated Plover
Marbled Godwit
Greater Yellowlegs
Ruddy Turnstone
Red Knot
Sanderling
Purple Sandpiper
Dunlin
Bonaparte's Gull
Ring-billed Gull
Great Black-backed Gull
American Herring Gull
Forster's Tern
Feral Rock Dove
American Mourning Dove
Northern Flicker
Bell's Vireo
Blue Jay
American Crow
Cedar Waxwing
Carolina Chickadee
Carolina Wren
Northern Mockingbird
European Starling
Eastern Bluebird
American Robin
House Sparrow
House Finch
Yellow-rumped Warbler
Baltimore Oriole
Red-winged Blackbird
White-throated Sparrow
Dickcissel
Northern Cardinal