American Crow vs Anna's Hummingbird
Corvus brachyrhynchos so với Calypte anna
Side-by-Side Comparison
| Thuộc Tính | American Crow | Anna's Hummingbird |
|---|---|---|
| Tên Khoa Học | Corvus brachyrhynchos | Calypte anna |
| Bộ | Passeriformes | Caprimulgiformes |
| Họ | Corvidae | Trochilidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | 45,0 cm (17.7 in) | 10,0 cm (3.9 in) |
| Chiều Dài Sải Cánh | 99,0 cm (39.0 in) | 12,0 cm (4.7 in) |
| Khối Lượng | 450,0 g (15.87 oz) | 4,3 g (0.15 oz) |
| Chế Độ Ăn | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … |
| Số Trứng | 3-7 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Môi Trường Sống Chung
Anna's Hummingbird only
Không
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Anna's Hummingbird
Chaparral, coastal sage scrub, gardens, parks, and open woodland along the Pacific coast. One of few hummingbirds not fully migratory.
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.
Anna's Hummingbird
Male produces a complex, scratchy song with buzzy 'dzzzzt' notes. Gives a nasal 'chee-chee-chee'. Males sing year-round, even in winter; one of few hummingbirds with true song.
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Tình Trạng Bảo Tồn
American Crow
Anna's Hummingbird
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
Anna's Hummingbird
Metallic bronze-green upperparts. Males have an iridescent rose-red crown and gorget. Females have green upperparts with grey underparts and a small red gorget patch.
Medium-length, straight, thin black 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.
Anna's Hummingbird
Anna's hummingbird is the most common hummingbird along the Pacific coast and one of only three species resident in the United States year-round. Males perform spectacular dive displays, plummeting from 40 meters and pulling up with a loud chirp produced by tail feathers. Their body temperature can drop to near ambient at night to conserve energy.