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Species › Birds

Slender-billed Gull

Chroicocephalus genei

Order
Charadriiformes
Family
Laridae
Presence in the Strait
Migrant
Protection in Spain
Special protection (List)
In Spanish
Gaviota picofina

Marine taxonomy: validated in WoRMS, AphiaID 1488274

Photograph: Christoph Moning, CC BY, vía iNaturalist

Length
42–44 cm
Wingspan
102–110 cm
Weight
290 g
050100LENGTH42–44 cmWINGSPAN102–110 cmcentimetres

Presence in the Strait

Occasional migrant to coastal wetlands. Rare since the beginning of the ‘90s.

Identification

Very similar to a Black-headed Gull but larger, with a longer bill and more elongated forehead. In winter, plain white head and red bill. In summer it has a pink wash on its breast. Juveniles are similar to those of a Black-headed Gull but with a white head, a small mark on the ear coverts and a less boldly patterned wing.

Movements

Peaks in April and October.

Bioestrecho editorial text. Last revised: 8 September 2026.

Gallery

Photographs from iNaturalist observations with the licence checked file by file. Those marked “Strait” were taken within the area; place and date are those of each observation.