Annual Survey Estimates Number of Wintering Duck, Geese, and Swans

News Release, Maryland Department of Natural Resources

Annapolis, MD- In early January, aerial survey teams of pilots and biologists from the Maryland Department of Natural Resources made visual estimates of the ducks, geese, and swans along most of the state’s Chesapeake Bay, Potomac River, and Atlantic coast shorelines. This year, the teams counted about 627,000 waterfowl, which was higher than the 566,300 birds observed during 2019, but lower than the five-year average of 738,440 birds.

“The abundance and distribution of wintering waterfowl are influenced not only by the annual changes in population size, but also the weather conditions during migration and throughout the winter,” said Wildlife and Heritage Director Paul Peditto. “Moderate winter weather up and down the east coast has allowed most waterfowl species to remain spread out across Maryland and our surrounding states.”

Overall, the number of dabbling ducks was higher (93,000) than last winter (64,400).  However, fewer diving ducks (149,700) were observed than in the 2019 survey (182,000). Biologists also counted more Canada geese this year (327,200) than last year (250,200). Following 2018’s record low hatch, Atlantic Population Canada geese benefited from normal spring weather conditions on their nesting grounds in 2019, leading to average gosling production. 

The Midwinter Waterfowl Survey has been conducted annually since the early 1950s and covers most of the tidal shoreline and near-shore waterfowl habitat in Maryland.

Midwinter Waterfowl Survey Results 2016-2020
Rounded to the nearest hundred

Black Duck19,20025,50038,30017,20021,000
Green-winged Teal2,4002,1005001,5002,000
Northern Shoveler1001000100300
Northern Pintail2,6002,3001,1006001,800
Total Dabblers69,80087,900108,00064,40093,000
Ring-necked Duck7004003001,1003,000
Ruddy Duck88,00035,00024,50028,90018,500
Total Divers246,000283,600187,200182,000149,700
Long-tailed Duck1002,7000300200
Total Ducks324,000381,200302,000276,500250,900
Snow Goose32,60021,30063,50034,70040,900
Canada Goose293,800394,700641,000250,200327,200
Tundra Swan11,20014,50016,4004,0007,100
Total Waterfowl663,000812,6001,023,300566,300627,000

David M. Higgins II, Publisher/EditorEditor-in-Chief

David M. Higgins II is an award-winning journalist passionate about uncovering the truth and telling compelling stories. Born in Baltimore and raised in Southern Maryland, he has lived in several East...