Australian Gull-billed Tern vs Andean Gull

Gelochelidon macrotarsa compared with Larus serranus

Side-by-Side Comparison

Attribute Australian Gull-billed Tern Andean Gull
Scientific Name Gelochelidon macrotarsa Larus serranus
Order Charadriiformes Charadriiformes
Family Laridae Laridae
Conservation Status Least Concern Least Concern
Length
Wingspan 61.1 cm (24.1 in) 70.6 cm (27.8 in)
Weight 246.66666666666666 g (8.70 oz) 478.0 g (16.86 oz)
Diet -- --
Clutch Size 2-3 1-4
Population Trend

Habitat Comparison

Shared Habitats

Australian Gull-billed Tern only

None

Andean Gull only

None

Conservation Status

Least Concern

Australian Gull-billed Tern

Least Concern

Andean Gull

About These Birds

Australian Gull-billed Tern

Australian Gull-billed Tern, 38–42 cm, is a large, heavy-billed tern endemic to Australia, breeding in arid inland wetlands. Pale grey above, white below, with a robust black bill. Takes insects, small reptiles, and crabs rather than diving for fish. Nomadic in response to inland rainfall.

Andean Gull

Andean Gull, 45–48 cm, breeds at high-altitude Andean lakes from Colombia to Argentina, typically above 3000 m. Black hood in breeding plumage; white below with grey mantle. Largely insectivore, following cattle or foraging at lake edges. Partial altitudinal migrant descending to Pacific and Atlantic coasts in winter.

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