Arctic Tern vs Roseate Spoonbill
Sterna paradisaea 비교 대상 Platalea ajaja
Side-by-Side Comparison
| 속성 | Arctic Tern | Roseate Spoonbill |
|---|---|---|
| 학명 | Sterna paradisaea | Platalea ajaja |
| 목 | Charadriiformes | Pelecaniformes |
| 과 | Laridae | Threskiornithidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | 34.0 cm (13.4 in) | 81.0 cm (31.9 in) |
| 날개 폭 | 80.0 cm (31.5 in) | 127.0 cm (50.0 in) |
| 체중 | 110.0 g (3.88 oz) | 1500.0 g (52.91 oz) |
| 식성 | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Small fish, crustaceans, aquatic insects, and plant material filtered from shallow water by sweeping the … |
| 산란 수 | 2-3 | 1-7 |
| 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.
Roseate Spoonbill
Shallow coastal lagoons, estuaries, mangroves, and freshwater marshes. Nests in colonies in trees and shrubs.
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.
Roseate Spoonbill
Low, grunting and guttural croaking sounds at nesting colonies. Generally quiet. Alarm calls are softer croaks. Vocalizations lack melodic quality; purely functional colony sounds.
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.
Roseate Spoonbill
Southeastern United States, Caribbean, Mexico, Central America, and South America to Argentina.
보전 상태
Arctic Tern
Roseate Spoonbill
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
Roseate Spoonbill
Vivid pink body plumage with darker carmine on the wings. Bare greenish-grey head. White neck and back. Intensity of pink depends on diet.
Long, flat, spatulate greyish bill used for sweeping through shallow water
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.
Roseate Spoonbill
The roseate spoonbill is the only spoonbill species in the Americas and one of the most striking wading birds in the Western Hemisphere. Like flamingos, their pink color comes from carotenoid pigments in their crustacean prey. Nearly hunted to extinction for their plumes in the 19th century, they have recovered substantially.