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- Longueur
- 38–40 cm
- Envergure
- 95–108 cm
- Poids
- 400–425 g
Présence dans le détroit
Scarce pelagic winter visitor.
Identification
Similar to a Common Gull, but the wing tips are completely black, lacking white mirrors, wings have two tones of grey (coverts and back darker) and blackish legs. In winter has a plain greenish bill and a white head with blackish earspot. Juveniles have a distinctive zigzag pattern (“W” shape) on upperparts, similar to a Little Gull, but larger with a grey back and mantle, and white crown without black flecks.
Déplacements
Peaks in 2nd hf. March and 2nd hf. December.
Texte éditorial de Bioestrecho. Dernière révision : 8 septembre 2026.