Anna's Hummingbird vs White-bearded Helmetcrest
Calypte anna в сравнении с Oxypogon lindenii
Side-by-Side Comparison
| Характеристика | Anna's Hummingbird | White-bearded Helmetcrest |
|---|---|---|
| Научное название | Calypte anna | Oxypogon lindenii |
| 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) | 14,4 cm (5.7 in) |
| Масса | 4,3 g (0.15 oz) | 4,8 g (0.17 oz) |
| Питание | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore restricted to high Sierra Nevada de Santa Marta páramo. Visits sparse Espeletia blooms; supplements … |
| 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.
White-bearded Helmetcrest
Soft, melodic ascending call; gentle pure tones rising gradually in unhurried musical sequence at forest edge.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
White-bearded Helmetcrest
Endemic to the Venezuelan Andes of Mérida in high páramo at 3,000–4,600 m. Restricted range.
Охранный статус
Anna's Hummingbird
White-bearded Helmetcrest
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
White-bearded Helmetcrest
Berylline Hummingbird: males with iridescent beryl-green gorget and head; metallic green; rufous wings; females duller with spotted throat
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.
White-bearded Helmetcrest
A small hummingbird (11-12 cm) endemic to the Andes of western Venezuela (Mérida and Trujillo) at 3,500-4,700 m. Males have a white beard and erect crest. Nectarivore of páramo, visiting Espeletia frailejón. A Venezuelan highland endemic.