American Crow vs Emperor Penguin
Corvus brachyrhynchos в сравнении с Aptenodytes forsteri
Side-by-Side Comparison
| Характеристика | American Crow | Emperor Penguin |
|---|---|---|
| Научное название | Corvus brachyrhynchos | Aptenodytes forsteri |
| Отряд | Passeriformes | Sphenisciformes |
| Семейство | Corvidae | Spheniscidae |
| Охранный статус | Least Concern | Near Threatened |
| Длина | 45,0 cm (17.7 in) | 115,0 cm (45.3 in) |
| Размах крыльев | 99,0 cm (39.0 in) | 76,0 cm (29.9 in) |
| Масса | 450,0 g (15.87 oz) | 30000,0 g (1058.22 oz) |
| Питание | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Primarily Antarctic silverfish, krill, and squid. The deepest-diving bird, reaching depths over 500 meters and … |
| Размер кладки | 3-7 | 1 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Emperor Penguin
Antarctic pack ice and surrounding Southern Ocean. The only penguin species that breeds during the Antarctic winter.
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.
Emperor Penguin
Loud, resonant trumpeting calls used for individual recognition in dense colonies. Each bird's call is unique in frequency. Also gives softer contact 'braying' notes.
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
Emperor Penguin
Antarctic continent and surrounding sea ice. Breeding colonies are found along the entire Antarctic coastline.
Охранный статус
American Crow
Emperor Penguin
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
Emperor Penguin
Black head, chin, and dorsal side with white belly. Bright yellow-orange ear patches fade to pale yellow on the upper breast.
Long, slightly decurved bill — black with orange or pink mandible stripe
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.
Emperor Penguin
The emperor penguin is the tallest and heaviest of all penguin species. They breed in the harshest conditions on Earth, enduring Antarctic winter temperatures of -60 C and wind speeds of 200 km/h. Males incubate the single egg on their feet under a brood pouch for about 65 days while fasting.