Black-headed Gull Chroicocephalus ridibundus (Linnaeus, 1766)
Order: Charadriiformes Family: Laridae Status: Vagrant to Madeira
Chroicocephalus ridibundus Biometrics
Wingspan: 100 - 110 cm (Beaman & Madge, 2011)
Total length: 34 - 37 cm (Beaman & Madge, 2011)
Weight: 225 - 350 g (Hume, 2002)
Status
Madeira local status by Correia-Fagundes et al, 2021: Frequent
Madeira local status by Romano et al, 2010: Seasonal
Madeira local status by Zino et al, 1995: Seasonal
Conservation status by the IUCN Red List Categories, 2017: Least Concern ver 3.1
Synonyms
Larus ridibundus (Linnaeus, 1766)
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