Arctic Tern vs Wilson's Bird-of-paradise
Sterna paradisaea 비교 대상 Cicinnurus respublica
Side-by-Side Comparison
| 속성 | Arctic Tern | Wilson's Bird-of-paradise |
|---|---|---|
| 학명 | Sterna paradisaea | Cicinnurus respublica |
| 목 | Charadriiformes | Passeriformes |
| 과 | Laridae | Paradisaeidae |
| 보전 상태 | Least Concern | Near Threatened |
| 체장 | 34.0 cm (13.4 in) | 16.0 cm (6.3 in) |
| 날개 폭 | 80.0 cm (31.5 in) | 19.0 cm (7.5 in) |
| 체중 | 110.0 g (3.88 oz) | 55.0 g (1.94 oz) |
| 식성 | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Fruit and insects gleaned from the forest canopy and subcanopy. Particularly favors figs. |
| 산란 수 | 2-3 | -- |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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.
Wilson's Bird-of-paradise
Lowland and hill forests on the small islands of Waigeo and Batanta in the Raja Ampat archipelago, Indonesia.
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.
Wilson's Bird-of-paradise
Male gives a harsh, nasal 'waah' or 'eeah' from display perch. Song is poorly documented in wild. Also produces mechanical rattling wing sounds during display flights.
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.
Wilson's Bird-of-paradise
Endemic to the islands of Waigeo and Batanta off the northwestern tip of New Guinea, Indonesia.
보전 상태
Arctic Tern
Wilson's Bird-of-paradise
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
Wilson's Bird-of-paradise
Males have a brilliant red back, yellow nape, turquoise blue bare crown, and green breast shield. Violet-blue curled tail wires. Females are brownish with bare blue crown.
Short, slightly curved greyish bill
About These Birds
Arctic Tern
북극제비갈매기는 모든 동물 중 가장 긴 이동 기록을 보유하고 있어, 매년 북극에서 남극까지 약 7만 km를 왕복합니다. 약 30년의 수명 동안 달을 세 번 왕복하는 거리를 날아다닙니다. 지구상 어떤 생물보다 많은 일광을 경험하는 놀라운 새입니다.
Wilson's Bird-of-paradise
Wilson's bird-of-paradise is one of the most extraordinarily colored birds on Earth. Males meticulously clear a patch of forest floor as a display court, removing every leaf and twig. The species was virtually unknown to science until the late 20th century due to its restricted island range.