Olrog's Gull vs Aleutian Tern

Larus atlanticus comparado con Onychoprion aleuticus

Side-by-Side Comparison

Atributo Olrog's Gull Aleutian Tern
Nombre científico Larus atlanticus Onychoprion aleuticus
Orden Charadriiformes Charadriiformes
Familia Laridae Laridae
Estado de conservación Near Threatened Vulnerable
Longitud
Envergadura 78,3 cm (30.8 in) 52,4 cm (20.6 in)
Peso 850,0 g (29.98 oz) 104,88 g (3.70 oz)
Dieta -- --
Tamaño de la puesta -- 1-4
Population Trend

Habitat Comparison

Hábitats compartidos

Olrog's Gull only

Ninguno

Aleutian Tern only

Estado de conservación

Near Threatened

Olrog's Gull

Vulnerable

Aleutian Tern

About These Birds

Olrog's Gull

Olrog's Gull, 55–58 cm, is an Endangered South American gull breeding in small colonies in Buenos Aires Province, Argentina. Very similar to Belcher's Gull. Piscivore; entirely dependent on mudflats and estuaries of the Buenos Aires coast. Threatened by industrial development of breeding and foraging sites.

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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