Arctic Tern vs periquito-australiano
Sterna paradisaea comparado com Melopsittacus undulatus
Side-by-Side Comparison
| Atributo | Arctic Tern | periquito-australiano |
|---|---|---|
| Nome científico | Sterna paradisaea | Melopsittacus undulatus |
| Ordem | Charadriiformes | Psittaciformes |
| Família | Laridae | Psittaculidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | 34,0 cm (13.4 in) | 18,0 cm (7.1 in) |
| Envergadura | 80,0 cm (31.5 in) | 30,0 cm (11.8 in) |
| Peso | 110,0 g (3.88 oz) | 30,0 g (1.06 oz) |
| Dieta | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Primarily grass seeds and other small seeds. In the wild, feeds on the ground in … |
| Tamanho da postura | 2-3 | 4-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partilhados
Arctic Tern only
periquito-australiano only
Arctic Tern
Breeds on coastal and tundra habitats. Spends most of its life at sea over the open ocean. Nests in colonies on beaches and rocky shores.
periquito-australiano
Open grasslands, scrublands, and woodland in the Australian interior. Nomadic, following rainfall and seeding events.
Song & Call Comparison
Arctic Tern
A sharp, grating 'kree-yah' alarm call. Also gives 'kik-kik-kik' near the nest. Highly aggressive vocally during the Arctic breeding season. Calls are harsh and insistent.
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
Arctic Tern
Breeds in the Arctic and sub-Arctic. Migrates to the Antarctic, experiencing two summers per year. Found on every ocean.
periquito-australiano
Interior of Australia, especially arid and semi-arid regions. One of the most popular pet birds worldwide.
Estado de conservação
Arctic Tern
periquito-australiano
How to Tell Them Apart
Arctic Tern
Pale grey upperparts, white underparts with a black cap. Blood-red bill and short red legs. Deeply forked tail streamers. Winter adults lose the full black cap.
Slender, pointed, bright red 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
Arctic Tern
The Arctic tern holds the record for the longest known migration of any animal, traveling roughly 70,000 km annually from Arctic to Antarctic and back. Over its 30-year lifespan, it may fly the equivalent of three round trips to the Moon. This remarkable bird experiences more daylight than any other creature on Earth.
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.