Gulls & Terns in Carmarthenshire
Our list for Carmarthenshire has 10 gulls & terns recorded regularly there: 4 residents, 1 summer visitor, 1 winter visitor, 3 passage migrants and 1 scarce visitor
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 10, 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
Common GullLarus canusWinter visitorCommon40–46 cmRegularly Jun–Apr
Sandwich TernThalasseus sandvicensisPassage migrantUncommon36–41 cmRegularly Apr–Sep
Mediterranean GullIchthyaetus melanocephalusSummer visitorUncommon37–40 cmRegularly Apr–Sep
Little GullHydrocoloeus minutusScarceUncommon25–30 cm
Common TernSterna hirundoPassage migrantUncommon31–35 cmRegularly Aug–Sep
KittiwakeRissa tridactylaPassage migrantUncommon37–41 cmRegularly Apr
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