Texte disponible pour l'instant uniquement en anglais.
- Longueur
- 55–67 cm
- Envergure
- 130–158 cm
- Poids
- 1 kg
Présence dans le détroit
Abundant resident on coasts and wetlands (>7,599 pairs). Species expanding, which until the ‘70s only bred in two large colonies in the Strait: Gibraltar and Tajo de Barbate (the former was formed at the beginning of the 20th Century), and later it bred in towns and at reservoirs. Previously, it was considered a subspecies of Larus argentatus in the Mediterranean.
Identification
The commonest gull in the area. Steel-grey mantle in adults, yellow legs, yellow bill with a red spot, red eye ring, and white head and underparts. Juveniles are brownish-grey and streaked below with a black bill; first-winter birds have a greyer back and pale brownish underparts; second-year birds have whiter underparts. Adult plumage appears at three years.
Déplacements
Sedentary with post-breeding dispersal that does not usually exceed 200 Km.
Texte éditorial de Bioestrecho. Dernière révision : 9 septembre 2026.
Phénologie comparée
Répartition mensuelle en proportion, par décennie. Elle permet de voir si le passage s'avance ou se retarde.
1990–1999
2000–2009
2010–2026
