Aleutian Tern vs Saunders's Gull

Onychoprion aleuticus compared with Saundersilarus saundersi

Side-by-Side Comparison

Attribute Aleutian Tern Saunders's Gull
Scientific Name Onychoprion aleuticus Saundersilarus saundersi
Order Charadriiformes Charadriiformes
Family Laridae Laridae
Conservation Status Vulnerable Vulnerable
Length
Wingspan 52.4 cm (20.6 in) 54.8 cm (21.6 in)
Weight 104.88 g (3.70 oz) 195.0 g (6.88 oz)
Diet -- --
Clutch Size 1-4 1-6
Population Trend

Habitat Comparison

Shared Habitats

Aleutian Tern only

Saunders's Gull only

None

Conservation Status

Vulnerable

Aleutian Tern

Vulnerable

Saunders'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.

Saunders's Gull

Saunders's Gull, 29–32 cm, is a Vulnerable gull breeding in coastal saltmarshes of China and Korea, wintering along East Asian coasts to Vietnam. Black hood in breeding plumage, white wing-tip mirrors. Feeds on crustaceans and invertebrates in tidal mudflats. Threatened by reclamation of Yellow Sea tidal flats.

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