Texte disponible pour l'instant uniquement en anglais.
- Longueur
- 65–78 cm
- Envergure
- 113–125 cm
- Poids
- 700–800 g
Présence dans le détroit
Rare pelagic migrant.
Identification
Similar to Arctic Skua, but larger and more robust. With wider wings and heavier bill. Central rectrices spoon-shaped. In flight note pale wing patches. Light and dark phases exist, the latter of which is almost totally dark brown. Juveniles are similar to those of a Yellow-legged Gull but darker and with a pale base to bill.
Déplacements
Prenuptial migration between March and May; postnuptial migration between July and October, with peaks in September.
Texte éditorial de Bioestrecho. Dernière révision : 8 septembre 2026.
Galerie
Owen Strickland, CC BY · 2023
Owen Strickland, CC BY · 2023
Owen Strickland, CC BY · 2023
Owen Strickland, CC BY · 2023
Owen Strickland, CC BY · 2023
Owen Strickland, CC BY · 2023
