Order: Charadriiformes 
Family: Laridae
Chroicocephalus genei
Slender-billed Gull

Size: 40-44 cm – 100-112 cm wingspan.
Habitat
They live in coastal areas, marshlands, salt-water and semi-salty lakes and lagoons, as well as coves, deltas, beaches, and riverbanks. 
In Spain they live in the Delta del Ebro, Albufera de Valencia, Laguna de Fuente de Piedra (Málaga), and the salt-lakes in Almería, Alicante, and Murcia, as well as in the marshes by the River Guadalquivir. They nest in Doñana, the Albufera de Valencia, and Punta Entinas-Sabinar in El Ejido and Roquetas de Mar (Almería). They are not particularly abundant in Doñana where they concentrate in salty ponds and the estuary.  They feed on insects, crustaceans, fish, etc.They are included in the List of Threatened Species of Valencia; conservation status: ‘Vulnerable’, and in the Red List of Threatened Vertebrates of Andalusia.