Inca Tern vs Aleutian Tern

Larosterna inca в сравнении с Onychoprion aleuticus

Side-by-Side Comparison

Характеристика Inca Tern Aleutian Tern
Научное название Larosterna inca Onychoprion aleuticus
Отряд Charadriiformes Charadriiformes
Семейство Laridae Laridae
Охранный статус Near Threatened Vulnerable
Длина
Размах крыльев 55,4 cm (21.8 in) 52,4 cm (20.6 in)
Масса 199,5 g (7.04 oz) 104,88 g (3.70 oz)
Питание -- --
Размер кладки 1-2 1-4
Population Trend

Habitat Comparison

Общие среды обитания

Inca Tern only

Нет

Aleutian Tern only

Охранный статус

Near Threatened

Inca Tern

Vulnerable

Aleutian Tern

About These Birds

Inca Tern

Inca Tern, 39–42 cm, is unmistakable — dark slate grey with white facial plumes curling from the bill like a Victorian moustache. Restricted to the Humboldt Current from Peru to Chile. Piscivore; snatches anchovies and other prey at the surface. Near Threatened; population tied to anchovy availability.

Aleutian Tern

Aleutian Tern, 32–34 cm, breeds colonially in Alaska and Russian Far East, wintering in Southeast Asian waters — one of the most poorly tracked migrations among seabirds. Dark grey above, white below, black cap with white forehead. Piscivore; dives for small fish. Near Threatened.

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