genus
Large Black-headed Gulls and Allies
Ichthyaetus
Field notes
Ichthyaetus is a genus of gulls in the order Charadriiformes. The genus name comes from Ancient Greek ἰχθύς (ikhthús), meaning "fish", and ἀετός (aetós), meaning "eagle", and thus, "fish eagle". They were previously included in the genus Larus.
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Range
Greener is more native, amber more introduced; paler is less certain. How this was decided