Heermann's Gull vs River Tern

Larus heermanni comparado com Sterna aurantia

Side-by-Side Comparison

Atributo Heermann's Gull River Tern
Nome científico Larus heermanni Sterna aurantia
Ordem Charadriiformes Charadriiformes
Família Laridae Laridae
Estado de conservação Near Threatened Vulnerable
Comprimento
Envergadura 67,2 cm (26.5 in) 52,4 cm (20.6 in)
Peso 448,26666666666665 g (15.81 oz) 187,5 g (6.61 oz)
Dieta -- --
Tamanho da postura 1-2 3-4
Population Trend

Habitat Comparison

Habitats partilhados

Heermann's Gull only

Nenhum

River Tern only

Estado de conservação

Near Threatened

Heermann's Gull

Vulnerable

River 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.

River Tern

River Tern, 38–43 cm, is a large freshwater tern of South and Southeast Asia, found along major rivers from Pakistan to Thailand. Yellow-orange bill, grey back, black cap in breeding plumage. Piscivore; plunge-dives into clear river water. Near Threatened due to river sand-mining and disturbance.

More Birds to Explore

Explore the Nature FYI Family