Long-tailed Sylph vs Anna's Hummingbird
Aglaiocercus kingii so với Calypte anna
Side-by-Side Comparison
| Thuộc Tính | Long-tailed Sylph | Anna's Hummingbird |
|---|---|---|
| Tên Khoa Học | Aglaiocercus kingii | Calypte anna |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | 10,0 cm (3.9 in) |
| Chiều Dài Sải Cánh | 11,7 cm (4.6 in) | 12,0 cm (4.7 in) |
| Khối Lượng | 5,25 g (0.19 oz) | 4,3 g (0.15 oz) |
| Chế Độ Ăn | Nectarivore of Andean cloud forest; forages at Ericaceae and epiphyte blooms. Supplements diet with small … | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … |
| Số Trứng | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Môi Trường Sống Chung
Không
Long-tailed Sylph only
Anna's Hummingbird 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
Long-tailed Sylph
Melodic, flowing phrase with rich character; warm notes weaving in relaxed sequence typical of dawn chorus activity.
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.
Geographic Range & Migration
Long-tailed Sylph
Widespread in Andean cloud forests from Venezuela south through Colombia, Ecuador, Peru, and Bolivia. 1,000–2,800 m.
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Tình Trạng Bảo Tồn
Long-tailed Sylph
Anna's Hummingbird
How to Tell Them Apart
Long-tailed Sylph
Rufous Hummingbird: males with brilliant orange-rufous body; iridescent red gorget; females green above; rufous-washed below
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
About These Birds
Long-tailed Sylph
A spectacular hummingbird (10 cm body + 13 cm tail in males) found in Andean cloud forests from Venezuela to Bolivia at 1,500-3,000 m. Males have extraordinarily long, iridescent violet-blue outer tail feathers. Nectarivore of montane forest edges. A cloud forest icon.
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.