Heermann's Gull vs Snowy-crowned Tern

Larus heermanni comparado com Sterna trudeaui

Side-by-Side Comparison

Atributo Heermann's Gull Snowy-crowned Tern
Nome científico Larus heermanni Sterna trudeaui
Ordem Charadriiformes Charadriiformes
Família Laridae Laridae
Estado de conservação Near Threatened Least Concern
Comprimento
Envergadura 67,2 cm (26.5 in) 51,2 cm (20.2 in)
Peso 448,26666666666665 g (15.81 oz) 149,75 g (5.28 oz)
Dieta -- --
Tamanho da postura 1-2 2-4
Population Trend

Habitat Comparison

Habitats partilhados

Heermann's Gull only

Nenhum

Snowy-crowned Tern only

Estado de conservação

Near Threatened

Heermann's Gull

Least Concern

Snowy-crowned Tern

About These Birds

Heermann's Gull

A gaivota-de-heermann é uma gaivota distinta da costa do Pacífico com cabeça branca e corpo cinzento-escuro, encontrada principalmente da Baja California ao Oregon.

Snowy-crowned Tern

Snowy-crowned Tern, 33–35 cm, breeds along the Atlantic coasts of Argentina and Uruguay, wintering north to southern Brazil. White crown with black post-ocular mark (unlike a full black cap), yellow-tipped red bill. Coastal and estuarine piscivore; plunge-dives for small fish.

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