Menu
« Start Over

Bird Observations

Date Range:
Jan-Dec, 1900-2024

Cass

Updated ~34 hr(s) ago.

326 species (+61 other taxa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Snow Goose
Ross's Goose
Snow x Ross's Goose (hybrid)
Snow/Ross's Goose
Greater White-fronted Goose
Domestic goose sp. (Domestic type)
Cackling Goose
Canada Goose
Greater White-fronted x Canada Goose (hybrid)
Cackling/Canada Goose
Mute Swan
Trumpeter Swan
Tundra Swan
Trumpeter/Tundra Swan
swan sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
goose sp.
Wood Duck
Garganey
Blue-winged Teal
Cinnamon Teal
Blue-winged x Cinnamon Teal (hybrid)
Northern Shoveler
Gadwall
Eurasian Wigeon
American Wigeon
Mallard
Gadwall x Mallard (hybrid)
American Black Duck
Mallard x American Black Duck (hybrid)
Mallard/Mottled Duck
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Northern Pintail
Green-winged Teal
teal sp.
dabbling duck sp.
Canvasback
Redhead
Ring-necked Duck
Greater Scaup
Lesser Scaup
Greater/Lesser Scaup
Aythya sp.
Harlequin Duck
Surf Scoter
White-winged Scoter
Black Scoter
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Long-tailed Duck
Bufflehead
Common Goldeneye
Hooded Merganser
Common Merganser
Red-breasted Merganser
Ruddy Duck
duck sp.
Wild Turkey
Sharp-tailed Grouse
Greater Prairie-Chicken
grouse sp.
Gray Partridge
Ring-necked Pheasant
Chukar
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Pied-billed Grebe
Horned Grebe
Red-necked Grebe
Eared Grebe
Western Grebe
Clark's Grebe
Western/Clark's Grebe
grebe sp.
Rock Pigeon
Eurasian Collared-Dove
White-winged Dove
Mourning Dove
Yellow-billed Cuckoo
Black-billed Cuckoo
Common Nighthawk
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Eastern Whip-poor-will
Chimney Swift
Ruby-throated Hummingbird
King Rail
Virginia Rail
Sora
Common Gallinule
American Coot
Yellow Rail
Sandhill Crane
Black-necked Stilt
American Avocet
Black-bellied Plover
American Golden-Plover
Black-bellied Plover/golden-plover sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Killdeer
Semipalmated Plover
Piping Plover
Upland Sandpiper
Whimbrel
Hudsonian Godwit
Marbled Godwit
Short-billed Dowitcher
Long-billed Dowitcher
Short-billed/Long-billed Dowitcher
American Woodcock
Wilson's Snipe
Wilson's Phalarope
Red Phalarope
Red-necked Phalarope
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
phalarope sp.
Spotted Sandpiper
Solitary Sandpiper
Lesser Yellowlegs
Willet
Greater Yellowlegs
Lesser/Greater Yellowlegs
Ruddy Turnstone
Red Knot
Ruff
Sharp-tailed Sandpiper
Curlew Sandpiper
Stilt Sandpiper
Buff-breasted Sandpiper
Sanderling
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Dunlin
Baird's Sandpiper
White-rumped Sandpiper
Least Sandpiper
Pectoral Sandpiper
Semipalmated Sandpiper
peep sp.
Calidris sp.
Little Gull
Sabine's Gull
Bonaparte's Gull
Franklin's Gull
Ring-billed Gull
Herring Gull
Great Black-backed Gull
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Glaucous Gull
Lesser Black-backed Gull
California Gull
Iceland Gull
Larus sp.
gull sp.
Least Tern
Caspian Tern
Black Tern
Forster's Tern
Common Tern
Forster's/Common Tern
tern sp.
Pacific Loon
Common Loon
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Double-crested Cormorant
American White Pelican
American Bittern
Least Bittern
Black-crowned Night Heron
Little Blue Heron
Snowy Egret
Green Heron
Western Cattle Egret
Great Egret
Great Blue Heron
White-faced Ibis
Glossy/White-faced Ibis
Turkey Vulture
Osprey
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Golden Eagle
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Sharp-shinned/Cooper's Hawk
American Goshawk
Accipiter sp.
Bald Eagle
Red-shouldered Hawk
Broad-winged Hawk
Swainson's Hawk
Red-tailed Hawk
Rough-legged Hawk
Ferruginous Hawk
Buteo sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
hawk sp.
Eastern Screech-Owl
Snowy Owl
Great Horned Owl
Northern Hawk Owl
Barred Owl
Long-eared Owl
Short-eared Owl
Boreal Owl
Northern Saw-whet Owl
owl sp.
Belted Kingfisher
Yellow-bellied Sapsucker
Red-headed Woodpecker
Red-bellied Woodpecker
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Downy Woodpecker
Hairy Woodpecker
Downy/Hairy Woodpecker
Pileated Woodpecker
Northern Flicker
woodpecker sp.
American Kestrel
Merlin
Gyrfalcon
Peregrine Falcon
Prairie Falcon
large falcon sp.
small falcon sp.
falcon sp.
Budgerigar
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Olive-sided Flycatcher
Western Wood-Pewee
Eastern Wood-Pewee
Western/Eastern Wood-Pewee
Yellow-bellied Flycatcher
Acadian Flycatcher
Alder Flycatcher
Willow Flycatcher
Alder/Willow Flycatcher (Traill's Flycatcher)
Least Flycatcher
Empidonax sp.
Eastern Phoebe
Say's Phoebe
Great Crested Flycatcher
Western Kingbird
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Eastern Kingbird
new world flycatcher sp.
White-eyed Vireo
Bell's Vireo
Yellow-throated Vireo
Blue-headed Vireo
Plumbeous Vireo
Philadelphia Vireo
Warbling Vireo
Red-eyed Vireo
Loggerhead Shrike
Northern Shrike
Canada Jay
Blue Jay
Black-billed Magpie
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
American Crow
Common Raven
Black-capped Chickadee
Horned Lark
Bank Swallow
Tree Swallow
Purple Martin
Northern Rough-winged Swallow
Barn Swallow
Cliff Swallow
swallow sp.
Ruby-crowned Kinglet
Golden-crowned Kinglet
White-breasted Nuthatch
Pygmy Nuthatch
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Red-breasted Nuthatch
Brown Creeper
Blue-gray Gnatcatcher
House Wren
Winter Wren
Sedge Wren
Marsh Wren
Carolina Wren
wren sp.
European Starling
Gray Catbird
Brown Thrasher
Sage Thrasher
Northern Mockingbird
Eastern Bluebird
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mountain Bluebird
Townsend's Solitaire
Varied Thrush
Veery
Gray-cheeked Thrush
Swainson's Thrush
Hermit Thrush
Catharus sp.
Wood Thrush
American Robin
Bohemian Waxwing
Cedar Waxwing
House Sparrow
Eurasian Tree Sparrow
American Pipit
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sprague's Pipit
Evening Grosbeak
Pine Grosbeak
House Finch
Purple Finch
House/Purple Finch
Cassin's Finch
Common Redpoll
Hoary Redpoll
Common/Hoary Redpoll
Red Crossbill
White-winged Crossbill
Pine Siskin
American Goldfinch
finch sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Lapland Longspur
Chestnut-collared Longspur
Smith's Longspur
Snow Bunting
Grasshopper Sparrow
Chipping Sparrow
Clay-colored Sparrow
Field Sparrow
Spizella sp.
Lark Sparrow
Lark Bunting
American Tree Sparrow
Spizella sp./American Tree Sparrow
Fox Sparrow
Dark-eyed Junco
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
White-crowned Sparrow
Harris's Sparrow
White-throated Sparrow
Vesper Sparrow
LeConte's Sparrow
Nelson's Sparrow
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
Swamp Sparrow
Spotted Towhee
Eastern Towhee
Spotted x Eastern Towhee (hybrid)
new world sparrow sp.
Yellow-breasted Chat
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Yellow-headed Blackbird
Bobolink
Western Meadowlark
Eastern Meadowlark
Western/Eastern Meadowlark
Orchard Oriole
Baltimore Oriole
Red-winged Blackbird
Brown-headed Cowbird
Rusty Blackbird
Brewer's Blackbird
Common Grackle
blackbird sp.
Ovenbird
Northern Waterthrush
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Golden-winged Warbler
Blue-winged Warbler
Brewster's Warbler (hybrid)
Black-and-white Warbler
Tennessee Warbler
Orange-crowned Warbler
Nashville Warbler
Connecticut Warbler
Mourning Warbler
Common Yellowthroat
Hooded Warbler
American Redstart
Cape May Warbler
Northern Parula
Magnolia Warbler
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Bay-breasted Warbler
Blackburnian Warbler
Yellow Warbler
Chestnut-sided Warbler
Blackpoll Warbler
Bay-breasted/Blackpoll Warbler
Black-throated Blue Warbler
Palm Warbler
Pine Warbler
Yellow-rumped Warbler
Yellow-throated Warbler
Black-throated Gray Warbler
Black-throated Green Warbler
Canada Warbler
Wilson's Warbler
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
new world warbler sp.
Summer Tanager
Scarlet Tanager
Western Tanager
Northern Cardinal
Rose-breasted Grosbeak
Black-headed Grosbeak
Blue Grosbeak
Lazuli Bunting
Indigo Bunting
Dickcissel
passerine sp.

KEY:| = insufficient data | = rare to widespread

Download Histogram Data