Gulls & Terns in Sligo
Our list for Sligo has 8 gulls & terns recorded regularly there: 2 residents, 2 summer visitors, 2 winter visitors and 2 passage migrants
Most likely in October
GBIF · OctShare of all bird records in Sligo in October, 2019–2024. Each month links to that month’s page.
All 8, most common first
European Herring GullLarus argentatusResidentCommon55–67 cmRegularly Dec–Oct
Great Black-backed GullLarus marinusResidentCommon64–79 cmRegularly May–Mar
Black-headed GullChroicocephalus ridibundusWinter visitorCommon38–44 cmRegularly Jun–Mar
Lesser Black-backed GullLarus fuscusSummer visitorCommon52–64 cmRegularly Mar–Aug
Common GullLarus canusWinter visitorCommon40–46 cmRegularly Jun–Mar
Sandwich TernThalasseus sandvicensisPassage migrantCommon36–41 cmRegularly Jul–Aug
KittiwakeRissa tridactylaSummer visitorCommon37–41 cmRegularly Mar–Dec
Common TernSterna hirundoPassage migrantUncommon31–35 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