Anna's Hummingbird vs Blue-tailed Hummingbird
Calypte anna в сравнении с Saucerottia cyanura
Side-by-Side Comparison
| Характеристика | Anna's Hummingbird | Blue-tailed Hummingbird |
|---|---|---|
| Научное название | Calypte anna | Saucerottia cyanura |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Trochilidae | Trochilidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | 10,0 cm (3.9 in) | — |
| Размах крыльев | 12,0 cm (4.7 in) | — |
| Масса | 4,3 g (0.15 oz) | 4,35 g (0.15 oz) |
| Питание | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Visits flowering trees and epiphytes for nectar; supplements diet with small arthropods including gnats, midges, … |
| Размер кладки | 2 | 2 |
| 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.
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.
Blue-tailed Hummingbird
Soft, pure whistle with plaintive character; gentle wavering tone given quietly in shaded understory.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Blue-tailed Hummingbird
Found in humid forests from Mexico to Costa Rica at 300-1,500 m. Resident on both Pacific and Caribbean slopes.
Охранный статус
Anna's Hummingbird
Blue-tailed Hummingbird
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
Blue-tailed Hummingbird
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.
Blue-tailed Hummingbird
A medium-sized hummingbird (9-10 cm) found in humid forests from Mexico to Costa Rica at 300-1,500 m. Green plumage with a blue tail. Nectarivore of forest edges and gardens. Found on both Pacific and Caribbean slopes of Central America.