Kingdom Animalia / Phylum Chordata
Clase Aves / Orden  Charadriiformes
Familia Laridae

Larus michahellis  J.F.Naumann, 1840
Gaviota patiamarilla
Yellow-legged Gull




Size: 55-67 cm

Habitat
They live in pools, ponds, wetlands, dumping sites, harbours, rocky coasts, cliffs, etc. They are a sedentary species. They nest on cliffs. They are spread all over the coast in the Iberian Peninsula where they breed in large colonies. They feed on invertebrates, fish, sea-urchins, mussels, organic material and even on chicks from other birds. They form flocks with other species chasing fishing-ships.  In the east and the north of Europe they are Larus cachinnans or Caspian gull. The plumage of the Yellow-legged gulls and that of the Caspian gulls is grey while that of the Lesser black-tailed gulls is black.
They can be seen on beaches, marshes and large aquatic flatlands. They mingle with other species of seagulls.