Gulls & Terns in Antrim
Our list for Antrim has 15 gulls & terns recorded regularly there: 4 residents, 5 summer visitors and 6 passage migrants
Most likely in October
GBIF · OctShare of all bird records in Antrim in October, 2019–2024. Each month links to that month’s page.
All 15, most common first
European Herring GullLarus argentatusResidentCommon55–67 cmRecorded all year
Lesser Black-backed GullLarus fuscusSummer visitorCommon52–64 cmRegularly Feb–Dec
Black-headed GullChroicocephalus ridibundusResidentCommon38–44 cmRecorded all year
KittiwakeRissa tridactylaSummer visitorCommon37–41 cmRecorded all year
Great Black-backed GullLarus marinusResidentCommon64–79 cmRecorded all year
Common GullLarus canusResidentCommon40–46 cmRecorded all year
Common TernSterna hirundoSummer visitorUncommon31–35 cmRegularly May–Sep
Mediterranean GullIchthyaetus melanocephalusPassage migrantUncommon37–40 cmRegularly Apr–Dec
Sandwich TernThalasseus sandvicensisSummer visitorUncommon36–41 cmRegularly Apr–Sep
Arctic TernSterna paradisaeaSummer visitorUncommon33–39 cmRegularly May–Oct
Little GullHydrocoloeus minutusPassage migrantUncommon25–30 cmRegularly Aug–Nov
Bonaparte's GullChroicocephalus philadelphiaPassage migrantUncommon28–38 cmRegularly Dec
Sabine's GullXema sabiniPassage migrantUncommon27–33 cmRegularly Aug–Sep
Glaucous GullLarus hyperboreusPassage migrantUncommon62–68 cmRegularly Jan–Mar
Iceland GullLarus glaucoidesPassage migrantUncommon52–60 cmRegularly Nov–Dec
Smallest to largest
Length, cm- Little Gull 25–30 cm
- Sabine's Gull 27–33 cm
- Common Tern 31–35 cm
- Bonaparte's Gull 28–38 cm
- Arctic Tern 33–39 cm
- Mediterranean Gull 37–40 cm
- Sandwich Tern 36–41 cm
- Kittiwake 37–41 cm
- Black-headed Gull 38–44 cm
- Common Gull 40–46 cm
- Iceland Gull 52–60 cm
- Lesser Black-backed Gull 52–64 cm
- European Herring Gull 55–67 cm
- Glaucous Gull 62–68 cm
- Great Black-backed Gull 64–79 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