Ducks, Geese & Swans in New Hampshire
Our list for New Hampshire has 26 ducks, geese & swans recorded regularly there: 5 residents, 1 summer visitor, 14 winter visitors and 6 passage migrants
Most likely in October
GBIF · OctShare of all bird records in New Hampshire in October, 2019–2024. Each month links to that month’s page.
All 26, most common first
Canada GooseBranta canadensisResidentCommon76–110 cmRecorded all year
MallardAnas platyrhynchosResidentCommon50–65 cmRecorded all year
Hooded MerganserLophodytes cucullatusWinter visitorCommon40–49 cmRecorded all year
Common MerganserMergus merganserWinter visitorCommon58–68 cmRecorded all year
Wood DuckAix sponsaSummer visitorCommon47–54 cmRegularly Mar–Nov
GoldeneyeBucephala clangulaWinter visitorCommon40–51 cmRegularly Nov–Apr
American Black DuckAnas rubripesWinter visitorCommon54–59 cmRecorded all year
Red-breasted MerganserMergus serratorWinter visitorCommon52–58 cmRegularly Oct–May
EiderSomateria mollissimaResidentCommon50–71 cmRecorded all year
Long-tailed DuckClangula hyemalisWinter visitorCommon37–60 cmRegularly Nov–May
Surf ScoterMelanitta perspicillataWinter visitorCommon48–60 cmRegularly Sep–May
Eurasian TealAnas creccaWinter visitorUncommon34–38 cmRegularly Aug–May
Greater ScaupAythya marilaWinter visitorUncommon39–56 cmRegularly Oct–Apr
Northern PintailAnas acutaWinter visitorUncommon59–76 cmRegularly Sep–Apr
Ruddy DuckOxyura jamaicensisPassage migrantUncommon35–43 cmRegularly Oct–May
Snow GooseAnser caerulescensWinter visitorUncommon69–84 cmRegularly Oct–Apr
Northern ShovelerSpatula clypeataWinter visitorUncommon44–51 cmRegularly Aug–May
Mute SwanCygnus olorWinter visitorUncommon140–160 cmRecorded all year
GadwallMareca streperaWinter visitorRare46–56 cmRegularly Sep–May
Greater White-fronted GooseAnser albifronsPassage migrantRare64–81 cmRegularly Mar
Brent GooseBranta berniclaPassage migrantRare55–66 cmRegularly Oct–Jun
King EiderSomateria spectabilisPassage migrantRare46–64 cmRegularly Oct–Dec
Cackling GooseBranta hutchinsiiPassage migrantRare53–76 cmRegularly Oct–Dec
Smallest to largest
Length, cm- Eurasian Teal 34–38 cm
- Ruddy Duck 35–43 cm
- Hooded Merganser 40–49 cm
- Goldeneye 40–51 cm
- Eurasian Wigeon 42–51 cm
- Greater Scaup 39–56 cm
- Northern Shoveler 44–51 cm
- Long-tailed Duck 37–60 cm
- Wood Duck 47–54 cm
- Gadwall 46–56 cm
- Surf Scoter 48–60 cm
- Red-breasted Merganser 52–58 cm
- King Eider 46–64 cm
- American Black Duck 54–59 cm
- Mallard 50–65 cm
- Eider 50–71 cm
- Brent Goose 55–66 cm
- Common Merganser 58–68 cm
- Cackling Goose 53–76 cm
- Northern Pintail 59–76 cm
- Greater White-fronted Goose 64–81 cm
- Muscovy Duck 66–84 cm
- Snow Goose 69–84 cm
- Greylag Goose 75–90 cm
- Canada Goose 76–110 cm
- Mute Swan 140–160 cm
Body length, bill to tail. Rare birds in grey.
Data: EOD – eBird Observation Dataset (Cornell Lab of Ornithology), accessed via GBIF.org, CC BY 4.0. Records from 2019–2024, aggregated and filtered by Birdfact. How these lists are made