Aleutian Tern vs White-fronted Tern

Onychoprion aleuticus compared with Sterna striata

Side-by-Side Comparison

Attribute Aleutian Tern White-fronted Tern
Scientific Name Onychoprion aleuticus Sterna striata
Order Charadriiformes Charadriiformes
Family Laridae Laridae
Conservation Status Vulnerable Near Threatened
Length — —
Wingspan 52.4 cm (20.6 in) 54.8 cm (21.6 in)
Weight 104.88 g (3.70 oz) 131.5 g (4.64 oz)
Diet -- --
Clutch Size 1-4 1-2
Population Trend — —

Habitat Comparison

Shared Habitats

Aleutian Tern only

White-fronted Tern only

None

Conservation Status

Vulnerable

Aleutian Tern

Near Threatened

White-fronted Tern

About These Birds

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.

White-fronted Tern

White-fronted Tern, 35–43 cm, is New Zealand's most common tern, breeding on coastal and riverine sites throughout the islands. White forehead contrasts with black cap; orange-red bill. Piscivore; hovers and plunge-dives in coastal waters and off river mouths. Winters on Australian coasts.

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