World Bird List

Species factsheet
Grey-headed Gull (Chroicocephalus cirrocephalus)

Order: Chroicocephalus cirrocephalus
Family: Gulls, Terns, Skimmers (Laridae)

Danske navn: Gråhovedet Måge

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
cirrocephalus coastal Ecuador and Peru, coastal c Brazil to Argentina
poiocephalus coastal Africa south of the Sahara and Madagascar