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Atlantic Flyway

Vermont Duck Migration Report 2026

Ducks make up as large a share of Vermont's bird observations in July and August as at any point in the fall, so its iNaturalist record shows no fall climb to date.

469
Nearest count, Maryland
ducks, March 19, 2026; about 410 miles away
Atlantic
Flyway
freeze watch below
The agency counts

The nearest counts to Vermont on the Atlantic Flyway

The nearest agency counts on the Atlantic Flyway are in Maryland (about 410 miles away) and Delaware (about 380 miles away), measured center to center, so read them as the flyway’s trend rather than a count of Vermont’s own birds.

Counted through the season

Blackwater National Wildlife Refuge Ground Waterfowl Survey

U.S. Fish and Wildlife Service, Blackwater National Wildlife Refuge · Maryland · about 410 miles from Vermont

Last season’s count, March 19, 2026
469 ducks
62 of them mallards
In the agency’s words
Winter 2026 ... 3/19/2026 ... Mallard MALL ... 62 ... total waterfowl ... 621 ... total duck ... 469
U.S. Fish and Wildlife Service, Blackwater National Wildlife Refuge, March 19, 2026. Read it at the source

Ducks, geese, swans and other water birds on Blackwater NWR on Maryland's Eastern Shore, by species, from the ground, plus a January aerial survey

How often
Roughly weekly
Season
November to March
Highest published count
5,613 ducks, January 2026
Counted at
Blackwater, Barren Island, Bishops Head, Smith Island, South Marsh and Bloodsworth Island
Midwinter survey

Aerial Waterfowl Survey

Delaware Department of Natural Resources and Environmental Control, Division of Fish and Wildlife · Delaware · about 380 miles from Vermont

Last published midwinter survey, January 2026
59,709 ducks
18,363 of them mallards
22,649 American black ducks, the most in any January flight in the dataset since 1978, and 24,174 snow geese against 248,322 in 2025
Total added up from the published species counts
In the agency’s words
{"year":"2026","sum_atlantic_brant":"74","sum_canada_goose":"84257","sum_snow_goose":"24174",...,"sum_american_black_duck":"22649","sum_mallard":"18363","sum_northern_pintail":"5190"
Delaware Department of Natural Resources and Environmental Control, Division of Fish and Wildlife, January 2026. Read it at the source

Ducks, geese and swans across the eastern half of Delaware from the Pennsylvania line to the Maryland line, by species and survey zone, from the air; the January flight is the statewide Midwinter count and the fall flights cover the bayshore zones only

How often
Fall flights in October, November and December over three bayshore zones (zones 5 to 7), then one statewide January Midwinter flight over every zone
Season
October to January
Counted at
  • Zone 1, Pennsylvania State line south to the Delaware Memorial Bridge
  • Zone 2, Delaware Memorial Bridge to the C&D Canal
  • Zone 3, C&D Canal to Liston Point and Kenton
  • Zone 4, Liston Point to Route 6 Smyrna
  • and 7 more
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Observations this week

Vermont against a normal year

Observations this week in Vermont

Counting this week’s research grade observations.

Observations this week in the Atlantic Flyway

Duck observations here usually reach their fall high around the week of Nov 9. Counting this week’s research grade observations.

Which ducks come through Vermont, and when

Each row is one species’ share of Vermont bird observations by week from August to July, darkest at its high point, from research grade iNaturalist observations 2016 to 2025. The last column is the week each species first comes four fifths of the way from its July level to its August to December high.

SpeciesAugSepOctNovDecJanFebMarAprMayJunJulUsual fall high
Mallarddabblingno fall rise; as common in summer
Green-winged tealdabblingweek of Oct 12
Blue-winged tealdabblingtoo few fall records
Northern pintaildabblingtoo few fall records
American wigeondabblingtoo few fall records
Gadwalldabblingtoo few fall records
Wood duckdabblingno fall rise; as common in summer
Redheaddivingtoo few fall records
Lesser scaupdivingtoo few fall records
Greater scaupdivingtoo few fall records
Ring-necked duckdivingweek of Oct 26
Buffleheaddivingweek of Nov 9
Common goldeneyedivingweek of Nov 23
What moves the birds

Freeze watch up the Atlantic Flyway

When the shallow water at the northern staging areas locks up, dabbling ducks move south to open water. These are the National Weather Service seven day forecast lows there, with nights at or below 28°F marked.

Freeze watch on the Atlantic Flyway

Reading the seven day forecast lows at Presque Isle, Lake Champlain at Burlington, Watertown.

Two ring-necked ducks swimming in dark open water along the edge of a sheet of ice
Ring-necked ducks on the open water left at the ice edge, Lake Andes National Wildlife Refuge, South Dakota. When the shallow pools lock up, the birds that feed in them have to move. “Ring-Necked Duck in Winter Lake Andes National Wildlife Refuge South Dakota (54202161621)”, USFWS Mountain-Prairie (Liz Julian), Public domain

Vermont duck migration questions

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Duck migration in other states

Agency counts read up to October 8, 2026, each from the page linked on its card, and the agency’s own report is the one that governs. Observation curves from iNaturalist research grade records 2016 to 2025; this week’s figures and the forecast lows are read when the page opens. Every state is on the duck migration report.