Anna's Hummingbird vs Águia-rabalva
Calypte anna comparado com Haliaeetus albicilla
Side-by-Side Comparison
| Atributo | Anna's Hummingbird | Águia-rabalva |
|---|---|---|
| Nome científico | Calypte anna | Haliaeetus albicilla |
| Ordem | Caprimulgiformes | Accipitriformes |
| Família | Trochilidae | Accipitridae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | 10,0 cm (3.9 in) | 84,0 cm (33.1 in) |
| Envergadura | 12,0 cm (4.7 in) | 225,0 cm (88.6 in) |
| Peso | 4,3 g (0.15 oz) | 5200,0 g (183.42 oz) |
| Dieta | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Fish, waterfowl, and carrion. Often pirates food from other birds. Takes fish from the water … |
| Tamanho da postura | 2 | 1-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Anna's Hummingbird
Chaparral, coastal sage scrub, gardens, parks, and open woodland along the Pacific coast. One of few hummingbirds not fully migratory.
Águia-rabalva
Coastlines, large lakes, and rivers with mature trees or cliffs for nesting. Requires large undisturbed areas.
Song & Call Comparison
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.
Águia-rabalva
High-pitched, yelping 'klee-klee' and deep barking 'ra-ra-ra'. Less vocal than Bald Eagle but similar chattering quality. Gives gull-like wailing near nest in breeding season.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Águia-rabalva
Northern Europe and Asia from Greenland and Scandinavia to Japan. Reintroduced to Scotland and Ireland.
Estado de conservação
Anna's Hummingbird
Águia-rabalva
How to Tell Them Apart
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
Águia-rabalva
Brown body with a paler head in adults and a distinctive short white wedge-shaped tail. Massive broad wings in flight. Juveniles are darker overall.
Very large, heavy, pale yellow bill
About These Birds
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.
Águia-rabalva
The white-tailed eagle is Europe's largest eagle and the fourth-largest eagle in the world. Once extinct in Britain, it has been successfully reintroduced to Scotland and Ireland through conservation programs. These powerful raptors can live over 25 years and form lifelong pair bonds.