Aleutian Tern vs Large-billed Tern

Onychoprion aleuticus comparado con Phaetusa simplex

Side-by-Side Comparison

Atributo Aleutian Tern Large-billed Tern
Nombre científico Onychoprion aleuticus Phaetusa simplex
Orden Charadriiformes Charadriiformes
Familia Laridae Laridae
Estado de conservación Vulnerable Least Concern
Longitud
Envergadura 52,4 cm (20.6 in) 58,3 cm (23.0 in)
Peso 104,88 g (3.70 oz) 241,5 g (8.52 oz)
Dieta -- --
Tamaño de la puesta 1-4 2-3
Population Trend

Habitat Comparison

Hábitats compartidos

Aleutian Tern only

Large-billed Tern only

Ninguno

Estado de conservación

Vulnerable

Aleutian Tern

Least Concern

Large-billed Tern

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.

Large-billed Tern

Large-billed Tern, 36–38 cm, is a distinctive South American freshwater tern of major river systems including the Amazon, Paraná, and Orinoco. Bold black and white plumage with a massive yellow bill and yellow feet. Piscivore; plunge-dives from height into rivers. Resident in tropical lowlands.

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