Anna's Hummingbird vs Grey-bellied Comet
Calypte anna ile kıyaslandığında Taphrolesbia griseiventris
Side-by-Side Comparison
| Özellik | Anna's Hummingbird | Grey-bellied Comet |
|---|---|---|
| Bilimsel Ad | Calypte anna | Taphrolesbia griseiventris |
| Takım | Caprimulgiformes | Caprimulgiformes |
| Familya | Trochilidae | Trochilidae |
| Koruma Durumu | Least Concern | Endangered |
| Uzunluk | 10,0 cm (3.9 in) | — |
| Kanat Açıklığı | 12,0 cm (4.7 in) | 15,6 cm (6.1 in) |
| Ağırlık | 4,3 g (0.15 oz) | 8,94 g (0.32 oz) |
| Beslenme | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Peruvian dry inter-Andean valleys; visits sparse Chuquiraga blooms. Supplements with small insects. |
| Kuluçka Büyüklüğü | 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.
Grey-bellied Comet
Crisp, musical chip with bright quality; single sharp note ringing cleanly, repeated at irregular but frequent intervals.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Grey-bellied Comet
Endemic to the western Andean slope in Peru in arid scrub and intermontane valleys. 2,400–3,800 m. Highly restricted range.
Koruma Durumu
Anna's Hummingbird
Grey-bellied Comet
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
Grey-bellied Comet
White-bellied Woodstar: males with glittering violet gorget; metallic green above; white postocular stripe; females green above; spots
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.
Grey-bellied Comet
A medium-sized hummingbird (15-18 cm including long tail) endemic to a small range in the Andes of Peru at 3,000-3,500 m. Grey belly and long, forked tail. Nectarivore. Classified as Endangered due to an extremely restricted range. One of the rarest Andean hummingbirds.