Masked Gulls and allies
Chroicocephalus
Chroicocephalus is a genus of medium to relatively small gulls which were included in the genus Larus until recently. Some authorities also include the Saunders's gull in Chroicocephalus. The genus name Chroicocephalus is from Ancient Greek khroizo, "to colour", and kephale, "head".
15 branches of this genus, most-observed first · about 10 known species
Black-headed Gull
speciesChroicocephalus ridibundus
Silver Gull
speciesChroicocephalus novaehollandiae
Bonaparte's Gull
speciesChroicocephalus philadelphia
Brown-hooded Gull
speciesChroicocephalus maculipennis
Gray-hooded Gull
speciesChroicocephalus cirrocephalus
Slender-billed Gull
speciesChroicocephalus genei
Hartlaub's Gull
speciesChroicocephalus hartlaubii
Andean Gull
speciesChroicocephalus serranus
Brown-headed Gull
speciesChroicocephalus brunnicephalus
Black-billed Gull
speciesChroicocephalus bulleri
Slender-billed × Brown-headed Gull
hybridChroicocephalus genei × brunnicephalus
Red-billed Gull × Black-billed Gull
hybridChroicocephalus novaehollandiae × bulleri
Black-headed × Slender-billed Gull
hybridChroicocephalus ridibundus × genei
Huahine Gull
speciesChroicocephalus utunui
Chroicocephalus cirrocephalus × hartlaubii
hybridChroicocephalus cirrocephalus × hartlaubii
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Chroicocephalus in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 144320.