Olrog's Gull vs Aleutian Tern

Larus atlanticus comparado com Onychoprion aleuticus

Side-by-Side Comparison

Atributo Olrog's Gull Aleutian Tern
Nome científico Larus atlanticus Onychoprion aleuticus
Ordem Charadriiformes Charadriiformes
Família Laridae Laridae
Estado de conservação Near Threatened Vulnerable
Comprimento
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 -- --
Tamanho da postura -- 1-4
Population Trend

Habitat Comparison

Habitats partilhados

Olrog's Gull only

Nenhum

Aleutian Tern only

Estado de conservação

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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