American Crow vs Raggiana Bird-of-paradise
Corvus brachyrhynchos в сравнении с Paradisaea raggiana
Side-by-Side Comparison
| Характеристика | American Crow | Raggiana Bird-of-paradise |
|---|---|---|
| Научное название | Corvus brachyrhynchos | Paradisaea raggiana |
| Отряд | Passeriformes | Passeriformes |
| Семейство | Corvidae | Paradisaeidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | 45,0 cm (17.7 in) | 34,0 cm (13.4 in) |
| Размах крыльев | 99,0 cm (39.0 in) | 45,0 cm (17.7 in) |
| Масса | 450,0 g (15.87 oz) | 260,0 g (9.17 oz) |
| Питание | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Fruit, seeds, arthropods, and small vertebrates. Males display at communal lek sites to attract females. |
| Размер кладки | 3-7 | 1-2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Общие среды обитания
American Crow only
Raggiana Bird-of-paradise only
Нет
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Raggiana Bird-of-paradise
Tropical rainforest and forest edge from lowlands to mid-montane elevations in New Guinea.
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.
Raggiana Bird-of-paradise
Males emit harsh, buzzy 'kraaak' calls and explosive wailing during display. Females give softer 'waak' contact calls. Display calls are loud and chaotic at leks.
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
Raggiana Bird-of-paradise
Southern and eastern New Guinea. Endemic to Papua New Guinea.
Охранный статус
American Crow
Raggiana Bird-of-paradise
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
Raggiana Bird-of-paradise
Males have a yellow crown, emerald-green throat, and spectacular cascading orange-red flank plumes. Females are brown with rufous underparts.
Stout, slightly curved, blue-grey bill
About These Birds
American Crow
The American crow is one of North America's most familiar and intelligent birds. Research has shown they can recognize individual human faces and communicate perceived threats to other crows. They form large winter roosts of up to hundreds of thousands of individuals in some cities.
Raggiana Bird-of-paradise
The raggiana bird-of-paradise is the national bird of Papua New Guinea, featured on the national flag and coat of arms. Males gather at traditional display trees to perform elaborate courtship dances, hanging upside down and shaking their spectacular flank plumes. Alfred Russel Wallace first described the species in 1873.