Anna's Hummingbird vs Wire-crested Thorntail
Calypte anna 对比 Discosura popelairii
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Wire-crested Thorntail |
|---|---|---|
| 学名 | Calypte anna | Discosura popelairii |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 10.0 cm (3.9 in) | — |
| 翼展 | 12.0 cm (4.7 in) | 6.6 cm (2.6 in) |
| 体重 | 4.3 g (0.15 oz) | 2.5 g (0.09 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of lowland tropical forest; forages high in canopy at flowering bromeliads and epiphytes. Supplements … |
| 产卵数 | 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.
Wire-crested Thorntail
Rapid, light twittering with crystalline quality; bright airy notes cascading freely in animated display above canopy.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Wire-crested Thorntail
Found on the eastern Andean slope in Colombia, Ecuador, Peru, and far western Brazil. 200–1,400 m elevation.
保护状况
Anna's Hummingbird
Wire-crested Thorntail
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
Wire-crested Thorntail
Bronze-tailed Comet: males with brilliant coppery-orange crown; glittering teal gorget; metallic green back; bronze tail; females duller
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.
Wire-crested Thorntail
A tiny hummingbird (7-8 cm plus extended tail wires in males, total 12-13 cm). Males have a spectacular erect green crest and long, wire-like outer tail feathers. Found in Andean foothill forests from Colombia to Peru. Nectarivore. One of the most ornate hummingbirds.