Common Gull vs Aleutian Tern

Larus canus compared with Onychoprion aleuticus

Side-by-Side Comparison

Attribute Common Gull Aleutian Tern
Scientific Name Larus canus Onychoprion aleuticus
Order Charadriiformes Charadriiformes
Family Laridae Laridae
Conservation Status Least Concern Vulnerable
Length
Wingspan 70.2 cm (27.6 in) 52.4 cm (20.6 in)
Weight 431.3333333333333 g (15.21 oz) 104.88 g (3.70 oz)
Diet -- --
Clutch Size 3-5 1-4
Population Trend

Habitat Comparison

Shared Habitats

Common Gull only

None

Aleutian Tern only

Conservation Status

Least Concern

Common Gull

Vulnerable

Aleutian Tern

About These Birds

Common Gull

Common Gull, 40–46 cm, is a medium-sized gull breeding across boreal Europe and Asia, wintering on Atlantic and Pacific coasts. Smaller and more dove-like than Herring Gull; yellow-green bill without red spot. Omnivore; follows ploughs, forages on shorelines and playing fields. 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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