águia-de-cabeça-branca vs Northern Cardinal
Haliaeetus leucocephalus comparado com Cardinalis cardinalis
Side-by-Side Comparison
| Atributo | águia-de-cabeça-branca | Northern Cardinal |
|---|---|---|
| Nome científico | Haliaeetus leucocephalus | Cardinalis cardinalis |
| Ordem | Accipitriformes | Passeriformes |
| Família | Accipitridae | Cardinalidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | 79,0 cm (31.1 in) | 22,0 cm (8.7 in) |
| Envergadura | 203,0 cm (79.9 in) | 30,0 cm (11.8 in) |
| Peso | 4300,0 g (151.68 oz) | 44,0 g (1.55 oz) |
| Dieta | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Seeds, grains, fruits, and insects. Especially fond of sunflower seeds at bird feeders. Feeds mainly … |
| Tamanho da postura | 1-4 | 1-5 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partilhados
águia-de-cabeça-branca only
Northern Cardinal only
Nenhum
águia-de-cabeça-branca
Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.
Northern Cardinal
Woodland edges, thickets, gardens, and suburban areas. Prefers dense shrubby habitats for nesting.
Song & Call Comparison
águia-de-cabeça-branca
High-pitched, chattering whistle: a rapid 'kleek-kik-ik-ik-ik'. Surprisingly weak and thin for such a large raptor. Also gives a lower 'kwit-kwit' call near the nest.
Northern Cardinal
Loud, clear whistled phrases: 'cheer-cheer-cheer' and 'birdy-birdy-birdy'. Both male and female sing; female song is softer. Alarm is a sharp metallic 'chink'.
Geographic Range & Migration
águia-de-cabeça-branca
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Northern Cardinal
Eastern and central North America from southern Canada to Mexico and Guatemala. Expanding range northward.
Estado de conservação
águia-de-cabeça-branca
Northern Cardinal
How to Tell Them Apart
águia-de-cabeça-branca
Adults have a dark brown body with a striking white head and tail. Juveniles are mottled brown and white, reaching full adult plumage at age five.
Large, hooked, bright yellow bill
Northern Cardinal
Males are brilliant crimson red overall with a black face mask. Females are warm buffy brown with reddish tinges on wings, crest, and tail.
Thick, conical, bright orange-red bill
About These Birds
águia-de-cabeça-branca
The bald eagle is the national bird and symbol of the United States. Once endangered due to DDT pesticide use, it made a remarkable recovery and was removed from the endangered species list in 2007. These powerful raptors build the largest tree nests of any bird, some weighing over two tons.
Northern Cardinal
The northern cardinal is the state bird of seven US states, more than any other species. Unlike many songbirds, both males and females sing, often in duets. Cardinals do not migrate and their brilliant red plumage against winter snow makes them a favorite among backyard birdwatchers.