Parent: Laridae (Gulls)

└─ Ichthyaetus

└─── Ichthyaetus audouinii (Audouin's gull)

└─── Ichthyaetus hemprichii (Sooty gull)

└─── Ichthyaetus ichthyaetus (Great black-headed gull)

└─── Ichthyaetus leucophthalmus (White-eyed gull)

└─── Ichthyaetus melanocephalus (Mediterranean gull)

└─── Ichthyaetus relictus (Relict gull)