Arctic Tern vs Roseate Spoonbill
Sterna paradisaea в сравнении с Platalea ajaja
Side-by-Side Comparison
| Характеристика | Arctic Tern | Roseate Spoonbill |
|---|---|---|
| Научное название | Sterna paradisaea | Platalea ajaja |
| Отряд | Charadriiformes | Pelecaniformes |
| Семейство | Laridae | Threskiornithidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | 34,0 cm (13.4 in) | 81,0 cm (31.9 in) |
| Размах крыльев | 80,0 cm (31.5 in) | 127,0 cm (50.0 in) |
| Масса | 110,0 g (3.88 oz) | 1500,0 g (52.91 oz) |
| Питание | 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 … |
| Размер кладки | 2-3 | 1-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Общие среды обитания
Arctic Tern only
Roseate Spoonbill 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.
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.
Охранный статус
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
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.
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.