Ducks, Geese & Swans in Carmarthenshire
Our list for Carmarthenshire has 25 ducks, geese & swans recorded regularly there: 9 residents, 7 winter visitors, 5 passage migrants and 4 scarce visitors
Most likely in October
GBIF · OctShare of all bird records in Carmarthenshire in October, 2019–2024. Each month links to that month’s page.
All 25, most common first
MallardAnas platyrhynchosResidentCommon50–65 cmRecorded all year
Common ShelduckTadorna tadornaResidentCommon58–67 cmRecorded all year
Eurasian WigeonMareca penelopeWinter visitorCommon42–51 cmRegularly Aug–Apr
Canada GooseBranta canadensisResidentCommon76–110 cmRecorded all year
Eurasian TealAnas creccaWinter visitorCommon34–38 cmRegularly Jun–Apr
Greylag GooseAnser anserResidentCommon75–90 cmRecorded all year
Mute SwanCygnus olorResidentCommon140–160 cmRecorded all year
Tufted DuckAythya fuligulaResidentCommon40–47 cmRecorded all year
Northern ShovelerSpatula clypeataResidentCommon44–51 cmRecorded all year
GadwallMareca streperaResidentCommon46–56 cmRecorded all year
Common ScoterMelanitta nigraPassage migrantCommon43–54 cmRegularly Aug–Apr
PochardAythya ferinaWinter visitorCommon42–49 cmRegularly Oct–Jun
Red-breasted MerganserMergus serratorWinter visitorCommon52–58 cmRegularly Nov–Apr
Northern PintailAnas acutaWinter visitorCommon59–76 cmRegularly Sep–Apr
Barnacle GooseBranta leucopsisResidentCommon58–70 cmRegularly Sep–Jun
Common MerganserMergus merganserWinter visitorUncommon58–68 cmRegularly Nov–Jul
Whooper SwanCygnus cygnusWinter visitorUncommon140–165 cmRegularly Sep–Mar
Long-tailed DuckClangula hyemalisPassage migrantUncommon37–60 cmRegularly Jan–Apr
EiderSomateria mollissimaScarceUncommon50–71 cm
GoldeneyeBucephala clangulaPassage migrantUncommon40–51 cmRegularly Dec–Jan
GarganeySpatula querquedulaPassage migrantUncommon37–41 cmRegularly May
Greater White-fronted GooseAnser albifronsScarceUncommon64–81 cm
Mandarin DuckAix galericulataScarceUncommon41–49 cm
Smallest to largest
Length, cm- Eurasian Teal 34–38 cm
- Garganey 37–41 cm
- Tufted Duck 40–47 cm
- Mandarin Duck 41–49 cm
- Pochard 42–49 cm
- Goldeneye 40–51 cm
- Eurasian Wigeon 42–51 cm
- Northern Shoveler 44–51 cm
- Common Scoter 43–54 cm
- Long-tailed Duck 37–60 cm
- Gadwall 46–56 cm
- Red-breasted Merganser 52–58 cm
- Mallard 50–65 cm
- Eider 50–71 cm
- Brent Goose 55–66 cm
- Common Shelduck 58–67 cm
- Common Merganser 58–68 cm
- Barnacle Goose 58–70 cm
- Northern Pintail 59–76 cm
- Pink-footed Goose 60–75 cm
- Greater White-fronted Goose 64–81 cm
- Greylag Goose 75–90 cm
- Canada Goose 76–110 cm
- Mute Swan 140–160 cm
- Whooper Swan 140–165 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