águia-de-cabeça-branca vs periquito-australiano
Haliaeetus leucocephalus comparado com Melopsittacus undulatus
Side-by-Side Comparison
| Atributo | águia-de-cabeça-branca | periquito-australiano |
|---|---|---|
| Nome científico | Haliaeetus leucocephalus | Melopsittacus undulatus |
| Ordem | Accipitriformes | Psittaciformes |
| Família | Accipitridae | Psittaculidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | 79,0 cm (31.1 in) | 18,0 cm (7.1 in) |
| Envergadura | 203,0 cm (79.9 in) | 30,0 cm (11.8 in) |
| Peso | 4300,0 g (151.68 oz) | 30,0 g (1.06 oz) |
| Dieta | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Primarily grass seeds and other small seeds. In the wild, feeds on the ground in … |
| Tamanho da postura | 1-4 | 4-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partilhados
águia-de-cabeça-branca only
periquito-australiano only
águia-de-cabeça-branca
Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.
periquito-australiano
Open grasslands, scrublands, and woodland in the Australian interior. Nomadic, following rainfall and seeding events.
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.
periquito-australiano
A rising, chattering 'budgerigar' chatter: rapid series of 'chek-chek-chek' and melodic warbling. Enormous wild flocks produce a continuous roaring chorus. Good vocal mimics in captivity.
Geographic Range & Migration
águia-de-cabeça-branca
North America from Alaska and Canada through the contiguous United States to northern Mexico.
periquito-australiano
Interior of Australia, especially arid and semi-arid regions. One of the most popular pet birds worldwide.
Estado de conservação
águia-de-cabeça-branca
periquito-australiano
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
periquito-australiano
Wild-type is green with yellow head and barred black scalloping on upperparts. Captive-bred varieties include blue, white, yellow, and many other colors.
Short, downward-curved, olive-grey bill typical of parakeets
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.
periquito-australiano
The budgerigar is the third most popular pet in the world after dogs and cats, and by far the most common pet parrot. Wild budgies travel in enormous nomadic flocks that can darken the sky. Males can learn to mimic human speech, with one record-holding budgie having a vocabulary of 1,728 words.