Anna's Hummingbird vs Long-tailed Woodnymph
Calypte anna 对比 Thalurania watertonii
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Long-tailed Woodnymph |
|---|---|---|
| 学名 | Calypte anna | Thalurania watertonii |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Endangered |
| 体长 | 10.0 cm (3.9 in) | — |
| 翼展 | 12.0 cm (4.7 in) | 10.9 cm (4.3 in) |
| 体重 | 4.3 g (0.15 oz) | 4.3999999999999995 g (0.16 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Feeds on floral nectar in Atlantic Forest understory; supplements diet with small insects and spiders … |
| 产卵数 | 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.
Long-tailed Woodnymph
Soft, sibilant notes in flowing sequence; gentle high twittering with airy quality near flowering vegetation.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Long-tailed Woodnymph
Endemic to the Atlantic Forest of northeastern Brazil. Classified as Endangered due to severe habitat fragmentation.
保护状况
Anna's Hummingbird
Long-tailed Woodnymph
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
Long-tailed Woodnymph
Savile's Bustard: pale brown above; white underparts; black crown; pale streaked mantle; males with dark collar; sexually dimorphic
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.
Long-tailed Woodnymph
A medium-sized hummingbird (11-12 cm) endemic to the Atlantic Forest of northeastern Brazil. Males have a long, deeply forked violet-blue tail and green body. Nectarivore of forest edges. Classified as Endangered due to severe Atlantic Forest fragmentation.