Seasonal Presence and Relative Frequency of Selected Species
This list summarizes the seasonal presence of selected bird species in Maryland, indicating whether each species occurs year-round, during the breeding season, or during the non-breeding season (winter and migration). Within each seasonal category, species are numbered and ordered from least to most frequently observed in the United States based on eBird frequency data. This ordering reflects how commonly a species has been observed by U.S. birders over time and is used here as a relative priority indicator, not as a measure of local abundance or the likelihood of encountering a species at a specific site or season within Maryland.
Saltmarsh Sparrow
Seaside Sparrow
Ruffed Grouse
American Woodcock
Northern Gannet
Clapper Rail
Northern Bobwhite
American Oystercatcher
Brown-headed Nuthatch
Boat-tailed Grackle
American Black Duck
Great Black-backed Gull
Cory’s Shearwater
King Rail
Chuck-will’s-widow
Cerulean Warbler
Golden-winged Warbler
Black-billed Cuckoo
Piping Plover
Kentucky Warbler
Sandwich Tern
Worm-eating Warbler
Alder Flycatcher
Canada Warbler
Mississippi Kite
Black Skimmer
Blue-winged Warbler
Louisiana Waterthrush
Prothonotary Warbler
Yellow-crowned Night Heron
Least Tern
Bobolink
Dickcissel
Hooded Warbler
Prairie Warbler
Willow Flycatcher
Black-throated Blue Warbler
Least Flycatcher
Yellow-throated Warbler
Royal Tern
Veery
Orchard Oriole
Tricolored Heron
Summer Tanager
Black-throated Green Warbler
Scarlet Tanager
Little Blue Heron
Rose-breasted Grosbeak
Baltimore Oriole
Indigo Bunting
Dovekie
Manx Shearwater
Great Shearwater
Wilson’s Storm-Petrel
Northern Fulmar
Red Phalarope
Nelson’s Sparrow
Razorbill
Sooty Shearwater
Purple Sandpiper
Parasitic Jaeger
Black-legged Kittiwake
Snowy Owl
Great Cormorant
Common Murre
Harlequin Duck
Snow Bunting
Sedge Wren
Red-necked Grebe
Rough-legged Hawk
Lesser Black-backed Gull
Black Scoter
Evening Grosbeak
White-winged Scoter
Red-throated Loon
Tundra Swan
Common Eider
Long-tailed Duck
Brant
Ruddy Turnstone
Snow Goose
Surf Scoter
American Tree Sparrow
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