American Crow vs Roseate Spoonbill
Corvus brachyrhynchos 比較対象 Platalea ajaja
Side-by-Side Comparison
| 属性 | American Crow | Roseate Spoonbill |
|---|---|---|
| 学名 | Corvus brachyrhynchos | Platalea ajaja |
| 目 | Passeriformes | Pelecaniformes |
| 科 | Corvidae | Threskiornithidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 45.0 cm (17.7 in) | 81.0 cm (31.9 in) |
| 翼開長 | 99.0 cm (39.0 in) | 127.0 cm (50.0 in) |
| 体重 | 450.0 g (15.87 oz) | 1500.0 g (52.91 oz) |
| 食性 | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Small fish, crustaceans, aquatic insects, and plant material filtered from shallow water by sweeping the … |
| 一腹卵数 | 3-7 | 1-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Roseate Spoonbill
Shallow coastal lagoons, estuaries, mangroves, and freshwater marshes. Nests in colonies in trees and shrubs.
Song & Call Comparison
American Crow
Classic 'caw-caw-caw' repeated in series. Family groups use distinct dialects. Also gives rattling, knocking, and a short 'cah' flight call. Highly social and vocal.
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
American Crow
North America from southern Canada through the United States to northern Mexico.
Roseate Spoonbill
Southeastern United States, Caribbean, Mexico, Central America, and South America to Argentina.
保全状況
American Crow
Roseate Spoonbill
How to Tell Them Apart
American Crow
All black with a slight glossy sheen. Squared-off tail and smooth throat distinguish it from the common raven.
Straight, sturdy black bill smaller than a raven's
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
American Crow
北米全域に広く分布する大型のカラス（体長40〜53cm）。全身光沢のある黒で、知性が高く強い社会性を持つ。Corvus brachyrhynchos（アメリカガラス）は北米で最もよく見られるカラスで、交通量の多い道路に堅い木の実を置いて車に割らせる「道具使用」が観察されている。Corvidae科。
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.