Gulls & Terns in Down
Our list for Down has 10 gulls & terns recorded regularly there: 4 residents, 3 summer visitors and 3 passage migrants
Most likely in October
GBIF · OctShare of all bird records in Down 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 fuscusSummer visitorCommon52–64 cmRegularly Feb–Dec
Common GullLarus canusResidentCommon40–46 cmRecorded all year
Great Black-backed GullLarus marinusResidentCommon64–79 cmRecorded all year
Sandwich TernThalasseus sandvicensisSummer visitorCommon36–41 cmRegularly Apr–Sep
Common TernSterna hirundoSummer visitorCommon31–35 cmRegularly Apr–Sep
Arctic TernSterna paradisaeaPassage migrantCommon33–39 cmRegularly May–Jul
KittiwakeRissa tridactylaPassage migrantCommon37–41 cmRegularly May–Dec
Mediterranean GullIchthyaetus melanocephalusPassage migrantUncommon37–40 cmRegularly May
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