Armenian Gull vs Yellow-footed Gull

Armenian Gull

Larus armenicus

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The Armenian gull is a fairly large gull species, though it is on average the smallest of the "herring gull" complex. It can range from 52 to 62 cm (20 to 24 in), from 120 to 145 cm (47 to 57 in) across the wings, and weighs from 600 to 960 g (1.32 to 2.12 lb). Among standard measurements, its wing chord is 38.5 to 45.8 cm (15.2 to 18.0 in), its bill is 4.1 to 5.6 cm (1.6 to 2.2 in) and its tarsus is 5.7 to 6.4 cm (2.2 to 2.5 in). They are superficially similar to yellow-legged gulls but are slightly smaller with a slightly darker grey back and dark eyes.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Donsky · CC BY 4.0

Yellow-footed Gull

Larus livens

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Adults are similar in appearance to the western gull with a white head, dark, slate-colored back and wings, and a thick yellow bill. Its legs are yellow, though first winter birds do display pink legs like those of the western gull. It attains full plumage at three years of age. This species is tied with slaty-backed gull for the world's fourth-largest gull species and is one of the largest gulls in the world, being slightly larger than the western gull. It measures 53 to 72 cm (21 to 28 in) in length and spans 140 to 160 cm (55 to 63 in) across the wings.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Laura Gaudette · CC BY 4.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Armenian Gull and Yellow-footed Gull.