Pallas's Gull vs Aleutian Tern

Larus ichthyaetus compared with Onychoprion aleuticus

Side-by-Side Comparison

Attribute Pallas's Gull Aleutian Tern
Scientific Name Larus ichthyaetus Onychoprion aleuticus
Order Charadriiformes Charadriiformes
Family Laridae Laridae
Conservation Status Least Concern Vulnerable
Length
Wingspan 94.2 cm (37.1 in) 52.4 cm (20.6 in)
Weight 1413.3333333333333 g (49.85 oz) 104.88 g (3.70 oz)
Diet -- --
Clutch Size 1-3 1-4
Population Trend

Habitat Comparison

Shared Habitats

Pallas's Gull only

None

Aleutian Tern only

Conservation Status

Least Concern

Pallas's Gull

Vulnerable

Aleutian Tern

About These Birds

Pallas's Gull

Pallas's Gull, 57–61 cm, is the world's largest hooded gull, breeding on Central Asian lakes and wintering in the Indian Ocean. Massive yellow bill with orange tip, black hood with white eye-crescents. Piscivore; plunge-dives and pirates food from other seabirds. Partially migratory.

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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