White-winged Tern vs Andean Gull

Chlidonias leucopterus compared with Larus serranus

Side-by-Side Comparison

Attribute White-winged Tern Andean Gull
Scientific Name Chlidonias leucopterus Larus serranus
Order Charadriiformes Charadriiformes
Family Laridae Laridae
Conservation Status Least Concern Least Concern
Length — —
Wingspan 41.6 cm (16.4 in) 70.6 cm (27.8 in)
Weight 60.5 g (2.13 oz) 478.0 g (16.86 oz)
Diet -- --
Clutch Size 2-3 1-4
Population Trend — —

Habitat Comparison

Shared Habitats

White-winged Tern only

Andean Gull only

None

Conservation Status

Least Concern

White-winged Tern

Least Concern

Andean Gull

About These Birds

White-winged Tern

White-winged Tern, 20–23 cm, breeds in wetlands from Eastern Europe to Central Asia and winters in sub-Saharan Africa, South Asia, and Australia. Breeding male: jet-black body contrasting with white wings. Insectivore; dips over marshes and rice paddies. Long-distance migrant.

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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