Black-headed gull

Black-headed gull
Adult summer plumage
Adult winter plumage
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Charadriiformes
Family: Laridae
Genus: Chroicocephalus
Species:
C. ridibundus
Binomial name
Chroicocephalus ridibundus
(Linnaeus, 1766)
Distribution:
  Breeding summer visitor
  Breeding resident
  Non-breeding passage migrant
  Non-breeding winter visitor
  Vagrant records
Synonyms

Larus ridibundus Linnaeus, 1766

The black-headed gull (Chroicocephalus ridibundus) is a small gull that breeds in much of the Palearctic in Europe and Asia, and also locally in smaller numbers in coastal eastern Canada. Most of the population is migratory and winters further south, but many also remain in the milder areas of northwestern Europe. It was formerly sometimes cited as "common black-headed gull" to distinguish it from "great black-headed gull" (an old name for Pallas's gull).

The genus name Chroicocephalus is from the Ancient Greek words khroizo, "to colour", and kephale, "head". The specific name ridibundus is Latin for "laughing".