Gulls & Terns in Swansea
Our list for Swansea has 9 gulls & terns recorded regularly there: 5 residents, 1 summer visitor, 1 winter visitor, 1 passage migrant and 1 scarce visitor
Most likely in October
GBIF · OctShare of all bird records in Swansea in October, 2019–2024. Each month links to that month’s page.
All 9, most common first
European Herring GullLarus argentatusResidentCommon55–67 cmRecorded all year
Black-headed GullChroicocephalus ridibundusResidentCommon38–44 cmRecorded all year
Lesser Black-backed GullLarus fuscusResidentCommon52–64 cmRecorded all year
Great Black-backed GullLarus marinusResidentCommon64–79 cmRecorded all year
Mediterranean GullIchthyaetus melanocephalusResidentCommon37–40 cmRegularly Jun–Jan
Common GullLarus canusWinter visitorCommon40–46 cmRegularly Jul–May
KittiwakeRissa tridactylaSummer visitorCommon37–41 cmRegularly Mar–Aug
Sandwich TernThalasseus sandvicensisPassage migrantCommon36–41 cmRegularly Apr–Sep
Common TernSterna hirundoScarceUncommon31–35 cmRegularly Aug
Smallest to largest
Length, cmData: 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