Mottled Duck vs Brent Goose

Anas fulvigula comparado con Branta bernicla

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Side-by-Side Comparison

Atributo Mottled Duck Brent Goose
Nombre científico Anas fulvigula Branta bernicla
Orden Anseriformes Anseriformes
Familia Anatidae Anatidae
Estado de conservación Least Concern Least Concern
Longitud
Envergadura 48,9 cm (19.3 in) 63,9 cm (25.2 in)
Peso 1027,5 g (36.24 oz) 1335,0 g (47.09 oz)
Dieta Dives for freshwater fish and aquatic invertebrates; saw-edged bill grips prey; diet strongly fish-dominated year-round. Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged …
Tamaño de la puesta 9-13 1-10
Population Trend
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Habitat Comparison

Hábitats compartidos

Mottled Duck only

Ninguno

Brent Goose only

Mottled Duck

Coastal freshwater and brackish marshes, wet prairies, and gulf coast wetlands in Florida and along the Gulf of Mexico coast to Texas. Non-migratory year-round resident. Threatened by Mallard hybridization.

Brent Goose

Breeds on high-Arctic tundra; winters on estuaries, coastal mudflats, saltmarshes, and sea-grass beds along Atlantic and Pacific coastlines. One of the most strictly coastal wintering geese.

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Song & Call Comparison

Mottled Duck

Canto

Female gives a loud, Mallard-like quacking series; male produces a soft, nasal note. Alarm call is a rapid, emphatic quacking burst; flocks generate a loud chorus on Gulf Coast marshes.

Brent Goose

Canto

A low, guttural 'rronk' or 'ronk-ronk' from flocks. Soft nasal calls in feeding groups. A subtle, understated call for a goose — less loud than most Anser geese.

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Geographic Range & Migration

Mottled Duck

Breeds across sub-Arctic and boreal regions of Eurasia; winters in sub-Saharan Africa and South Asia.

Brent Goose

Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.

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Estado de conservación

Least Concern

Mottled Duck

Least Concern

Brent Goose

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How to Tell Them Apart

Mottled Duck

Plumaje

Rich mottled brown plumage with buff-edged feathers and pale buff head and throat. Dark crown and eye stripe. Iridescent blue speculum with white border. Yellow-orange bill. Sexes similar. Resembles non-breeding …

Brent Goose

Plumaje

Small; mostly black head, neck, and breast. Small white neck-patch on adults. Back dark brownish-gray; belly pale gray to white depending on subspecies. White undertail coverts. Sexes similar.

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About These Birds

Mottled Duck

El pato de Florida es un pato de tamaño mediano con plumaje marrón moteado en ambos sexos, similar al pato mexicano. Está estrechamente emparentado con el pato de collar y el pato negro americano, y los tres forman un complejo de especies estrechamente relacionadas. Se encuentra principalmente en Florida y la costa norte del Golfo de México, habitando marismas costeras y humedales de agua dulce.

Brent Goose

El barnacla brenta o barnacla negruzca es un pequeño ganso marino de color negro y gris oscuro con un pequeño parche blanco a los lados del cuello. Cría en la tundra ártica y migra a zonas costeras templadas del hemisferio norte en invierno, donde se alimenta principalmente de zostera, un tipo de hierba marina. Es el único ganso que pasa el invierno en ambientes exclusivamente marinos.

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