Anna's Hummingbird vs Blue-mantled Thornbill
Calypte anna в сравнении с Chalcostigma stanleyi
Side-by-Side Comparison
| Характеристика | Anna's Hummingbird | Blue-mantled Thornbill |
|---|---|---|
| Научное название | Calypte anna | Chalcostigma stanleyi |
| 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) | 13,2 cm (5.2 in) |
| Масса | 4,3 g (0.15 oz) | 5,2749999999999995 g (0.19 oz) |
| Питание | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Andean treeline scrub; visits Ericaceae and Brachyotum blooms. Supplements with small arthropods. |
| 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.
Blue-mantled Thornbill
Crisp, whistled notes in ascending sequence; clean bright tones stepping up smoothly in cheerful morning delivery.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Blue-mantled Thornbill
Found in high Andean páramo from Colombia south through Ecuador and Peru to Bolivia. 3,000–4,500 m elevation.
Охранный статус
Anna's Hummingbird
Blue-mantled Thornbill
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
Blue-mantled Thornbill
Long-billed Starthroat: males glittering blue-green gorget; metallic green above; long bill; white pectoral tufts; females green with 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.
Blue-mantled Thornbill
A small hummingbird (10-11 cm) found in Andean páramo from Colombia to Bolivia at 3,500-4,800 m. Males have a blue-violet mantle and short bill. Nectarivore of high-altitude Chuquiraga and Puya flowers. Enters torpor nightly. One of the highest-living hummingbirds.