Aleutian Tern vs Sabine's Gull

Onychoprion aleuticus compared with Xema sabini

Side-by-Side Comparison

Attribute Aleutian Tern Sabine's Gull
Scientific Name Onychoprion aleuticus Xema sabini
Order Charadriiformes Charadriiformes
Family Laridae Laridae
Conservation Status Vulnerable Least Concern
Length — —
Wingspan 52.4 cm (20.6 in) 53.0 cm (20.9 in)
Weight 104.88 g (3.70 oz) 182.16666666666666 g (6.43 oz)
Diet -- --
Clutch Size 1-4 1-3
Population Trend — —

Habitat Comparison

Shared Habitats

Aleutian Tern only

Sabine's Gull only

None

Conservation Status

Vulnerable

Aleutian Tern

Least Concern

Sabine's Gull

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.

Sabine's Gull

Sabine's Gull, 27–32 cm, is an elegant small gull breeding in Arctic tundra and wintering in the Humboldt and Benguela Current upwellings. Striking tricoloured wing pattern — dark primaries, grey secondaries, white inner wing. Long-distance migrant; crosses equator twice annually. Planktivore and piscivore.

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