Anna's Hummingbird vs Black-tailed Trainbearer
Calypte anna ile kıyaslandığında Lesbia victoriae
Side-by-Side Comparison
| Özellik | Anna's Hummingbird | Black-tailed Trainbearer |
|---|---|---|
| Bilimsel Ad | Calypte anna | Lesbia victoriae |
| Takım | Caprimulgiformes | Caprimulgiformes |
| Familya | Trochilidae | Trochilidae |
| Koruma Durumu | Least Concern | Least Concern |
| Uzunluk | 10,0 cm (3.9 in) | — |
| Kanat Açıklığı | 12,0 cm (4.7 in) | 11,7 cm (4.6 in) |
| Ağırlık | 4,3 g (0.15 oz) | 4,9 g (0.17 oz) |
| Beslenme | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Andean dry inter-valley scrub; visits Salvia, Lupinus, and Calceolaria. Supplements with small arthropods. |
| Kuluçka Büyüklüğü | 2 | -- |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Ortak Yaşam Alanları
Hiçbiri
Anna's Hummingbird only
Black-tailed Trainbearer only
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.
Black-tailed Trainbearer
Sharp, crackling trill with percussive edge; rapid dry notes delivered forcefully near active competitive territory.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Black-tailed Trainbearer
Found in high Andean scrub and open habitats from Colombia south through Ecuador and Peru to Bolivia. 2,500–4,200 m.
Koruma Durumu
Anna's Hummingbird
Black-tailed Trainbearer
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
Black-tailed Trainbearer
Cuban Emerald: males with deep purple gorget; metallic bronze-green above; white flanks; females plain green above; pale spotted below
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.
Black-tailed Trainbearer
A spectacular hummingbird (10 cm body + 15 cm tail in males) found in Andean highlands from Colombia to Peru at 2,500-4,000 m. Males have extraordinarily long, black outer tail streamers. Nectarivore of páramo and cloud forest edges. Named for its dramatic trailing tail feathers.