MOS logo and Tundra Swans flying
Search Site What's New? Site Map Contact MOS Travel Resources Call Notes

Activities & Events
About MOS
Birds of MD and DC
Birding Sites
Species Counts
Breeding Bird Atlas
Publications
Member Resources
Conservation
Education
Records Committee


You are here: Home - Birds - Annual Occurrences

Annually Occurring Species in MD

Marshall Iliff, Compiler

Below is a list of the annually occurring bird species in Maryland. The list is broken down three ways: those species that did not make the cut, those that barely made the cut, and those that are squarely within the criteria (i.e., seen in ten out of ten years). For pelagics, some assumptions were made based on what would be seen annually if a single trip for the species went out during the right season.

The totals are: 312 annually occurring (of which 10 are marginal) and 18 that barely didn't make the cut.

The following species are nearly annual and many would prove to be annual if we had more serious observers in the state that lived on the coast and/or if there were more regular well-timed pelagic trips.

Eared Grebe
White Ibis
Sandhill Crane
Hudsonian Godwit
Ruff
Long-tailed Jaeger
Great Skua
Franklin's Gull
Thayer's Gull
Roseate Tern
Bridled Tern
Dovekie
Razorbill
Atlantic Puffin
Rufous Hummingbird
Western Kingbird
Yellow-headed Blackbird
Brewer's Blackbird

These next few were included in the list of annually occurring species but are the most marginal ones. For most, the species safely occurs annually and if it did not occur in one year it would likely be due to a decrease in observer effort or a change in habitat at one key site. Loggerhead Shrike is one exception, which has thus far been annual, but has decline so severely that it will surely drop off this list soon.

Red-necked Grebe
Common Eider
King Eider
Marbled Godwit
Wilson's Phalarope
Little Gull
Black-headed Gull
Long-eared Owl
Loggerhead Shrike
Lark Sparrow

The rest of the list, an additional 302 species which are unequivocally annual, are listed below.

Red-throated Loon
Common Loon
Pied-billed Grebe
Horned Grebe
Northern Fulmar
Cory's Shearwater
Greater Shearwater
Sooty Shearwater
Manx Shearwater
Audubon's Shearwater
Wilson's Storm-Petrel
Leach's Storm-Petrel
Northern Gannet
Brown Pelican
Great Cormorant
Double-crested Cormorant
American Bittern
Least Bittern
Great Blue Heron
Great Egret
Snowy Egret
Little Blue Heron
Tricolored Heron
Cattle Egret
Green Heron
Black-crowned Night-Heron
Yellow-crowned Night-Heron
Glossy Ibis
Tundra Swan
Mute Swan
Greater White-fronted Goose
Snow Goose
Ross' Goose
Brant
Canada Goose
Wood Duck
Green-winged Teal
American Black Duck
Mallard
Northern Pintail
Blue-winged Teal
Northern Shoveler
Gadwall
Eurasian Wigeon
American Wigeon
Canvasback
Redhead
Ring-necked Duck
Greater Scaup
Lesser Scaup
Harlequin Duck
Oldsquaw
Black Scoter
Surf Scoter
White-winged Scoter Common Goldeneye
Bufflehead
Hooded Merganser
Common Merganser
Red-breasted Merganser
Ruddy Duck
Black Vulture
Turkey Vulture
Osprey
Mississippi Kite
Bald Eagle
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Northern Goshawk
Red-shouldered Hawk
Broad-winged Hawk
Red-tailed Hawk
Rough-legged Hawk
Golden Eagle
American Kestrel
Merlin
Peregrine Falcon
Ring-necked Pheasant
Ruffed Grouse
Wild Turkey
Northern Bobwhite
Black Rail
Clapper Rail
King Rail
Virginia Rail
Sora
Common Moorhen
American Coot
Black-bellied Plover
American Golden-Plover
Semipalmated Plover
Piping Plover
Killdeer
American Oystercatcher
Black-necked Stilt
American Avocet
Greater Yellowlegs
Lesser Yellowlegs
Solitary Sandpiper
Willet
Spotted Sandpiper
Upland Sandpiper
Whimbrel
Ruddy Turnstone
Red Knot
Sanderling
Semipalmated Sandpiper
Western Sandpiper
Least Sandpiper
White-rumped Sandpiper
Baird's Sandpiper
Pectoral Sandpiper
Purple Sandpiper
Dunlin
Stilt Sandpiper
Buff-breasted Sandpiper
Short-billed Dowitcher
Long-billed Dowitcher
Common Snipe
American Woodcock
Red-necked Phalarope
Red Phalarope
Pomarine Jaeger
Parasitic Jaeger
Laughing Gull
Bonaparte's Gull
Ring-billed Gull
Herring Gull
Iceland "Kumlien's" Gull
Lesser Black-backed Gull
Glaucous Gull
Great Black-backed Gull
Black-legged Kittiwake
Gull-billed Tern
Caspian Tern
Royal Tern
Sandwich Tern
Common Tern
Forster's Tern
Least Tern
Black Tern
Black Skimmer
Rock Dove
Mourning Dove
Black-billed Cuckoo
Yellow-billed Cuckoo
Barn Owl
Eastern Screech-Owl
Great Horned Owl
Barred Owl
Short-eared Owl
Northern Saw-whet Owl
Common Nighthawk
Chuck-will's-widow
Whip-poor-will
Chimney Swift
Ruby-throated Hummingbird
Belted Kingfisher
Red-headed Woodpecker
Red-bellied Woodpecker
Yellow-bellied Sapsucker
Downy Woodpecker
Hairy Woodpecker
Northern "Yellow-shafted" Flicker
Pileated Woodpecker
Olive-sided Flycatcher
Eastern Wood-Pewee
Yellow-bellied Flycatcher
Acadian Flycatcher
Alder Flycatcher
Willow Flycatcher
Least Flycatcher
Eastern Phoebe
Great Crested Flycatcher
Eastern Kingbird
Horned Lark
Purple Martin
Tree Swallow
Northern Rough-winged Swallow
Bank Swallow
Cliff Swallow
Barn Swallow
Blue Jay
American Crow
Fish Crow
Common Raven
Black-capped Chickadee
Carolina Chickadee
Tufted Titmouse
Red-breasted Nuthatch
White-breasted Nuthatch
Brown-headed Nuthatch
Brown Creeper
Carolina Wren
House Wren
Winter Wren
Sedge Wren
Marsh Wren
Golden-crowned Kinglet
Ruby-crowned Kinglet
Blue-gray Gnatcatcher
Eastern Bluebird
Veery
Gray-cheeked Thrush
Bicknell's Thrush
Swainson's Thrush
Hermit Thrush
Wood Thrush
American Robin
Gray Catbird
Northern Mockingbird
Brown Thrasher
American Pipit
Cedar Waxwing
European Starling
White-eyed Vireo
Blue-headed Vireo
Yellow-throated Vireo
Warbling Vireo
Philadelphia Vireo
Red-eyed Vireo
Blue-winged Warbler
Golden-winged Warbler
Tennessee Warbler
Orange-crowned Warbler
Nashville Warbler
Northern Parula
Yellow Warbler
Chestnut-sided Warbler
Magnolia Warbler
Cape May Warbler
Black-throated Blue Warbler
Yellow-rumped "Myrtle" Warbler
Black-throated Green Warbler
Blackburnian Warbler
Yellow-throated Warbler
Pine Warbler
Prairie Warbler
Palm Warbler
Bay-breasted Warbler
Blackpoll Warbler
Cerulean Warbler
Black-and-white Warbler
American Redstart
Prothonotary Warbler
Worm-eating Warbler
Swainson's Warbler
Ovenbird
Northern Waterthrush
Louisiana Waterthrush
Kentucky Warbler
Connecticut Warbler
Mourning Warbler
Common Yellowthroat
Hooded Warbler
Wilson's Warbler
Canada Warbler
Yellow-breasted Chat
Summer Tanager
Scarlet Tanager
Northern Cardinal
Rose-breasted Grosbeak
Blue Grosbeak
Indigo Bunting
Dickcissel
Eastern Towhee
American Tree Sparrow
Chipping Sparrow
Clay-colored Sparrow
Field Sparrow
Vesper Sparrow
Savannah Sparrow
Grasshopper Sparrow
Henslow's Sparrow
Nelson's Sharp-tailed Sparrow
Saltmarsh Sharp-tailed Sparrow
Seaside Sparrow
Fox Sparrow
Song Sparrow
Lincoln's Sparrow
Swamp Sparrow
White-throated Sparrow
White-crowned Sparrow
Dark-eyed Junco
Lapland Longspur
Snow Bunting
Bobolink
Red-winged Blackbird
Eastern Meadowlark
Rusty Blackbird
Boat-tailed Grackle
Common Grackle
Brown-headed Cowbird
Baltimore Oriole
Orchard Oriole
Purple Finch
House Finch
Pine Siskin
American Goldfinch
Evening Grosbeak
House Sparrow