Biology — Phylogeny: gulls & terns
Seabirds of the family Laridae.
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((Herring_gull:10,Black_headed_gull:10):6,(Kittiwake:12,Tern:12):4);
Seabirds of the family Laridae.
((Herring_gull:10,Black_headed_gull:10):6,(Kittiwake:12,Tern:12):4);