Ducks, Geese & Swans in Monmouthshire
Our list for Monmouthshire has 13 ducks, geese & swans recorded regularly there: 6 residents, 1 summer visitor, 2 winter visitors, 2 passage migrants and 2 scarce visitors
Most likely in October
GBIF · OctShare of all bird records in Monmouthshire in October, 2019–2024. Each month links to that month’s page.
All 13, most common first
MallardAnas platyrhynchosResidentCommon50–65 cmRecorded all year
Common MerganserMergus merganserWinter visitorCommon58–68 cmRecorded all year
Canada GooseBranta canadensisResidentCommon76–110 cmRecorded all year
Mute SwanCygnus olorResidentCommon140–160 cmRecorded all year
Tufted DuckAythya fuligulaSummer visitorCommon40–47 cmRegularly Apr–Jan
Eurasian WigeonMareca penelopeWinter visitorCommon42–51 cmRegularly Nov–Mar
Eurasian TealAnas creccaPassage migrantCommon34–38 cmRegularly Sep–Mar
Common ShelduckTadorna tadornaResidentCommon58–67 cmRegularly Sep–Jul
GoldeneyeBucephala clangulaPassage migrantUncommon40–51 cmRegularly Jan
SmewMergellus albellusScarceUncommon38–44 cmRegularly Jan
GadwallMareca streperaResidentUncommon46–56 cmRegularly Jan
Greylag GooseAnser anserScarceUncommon75–90 cm
Mandarin DuckAix galericulataResidentUncommon41–49 cmRegularly Apr
Smallest to largest
Length, cm- Eurasian Teal 34–38 cm
- Smew 38–44 cm
- Tufted Duck 40–47 cm
- Mandarin Duck 41–49 cm
- Goldeneye 40–51 cm
- Eurasian Wigeon 42–51 cm
- Gadwall 46–56 cm
- Mallard 50–65 cm
- Common Shelduck 58–67 cm
- Common Merganser 58–68 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