Anna's Hummingbird vs Peruvian Sheartail
Calypte anna so với Thaumastura cora
Side-by-Side Comparison
| Thuộc Tính | Anna's Hummingbird | Peruvian Sheartail |
|---|---|---|
| Tên Khoa Học | Calypte anna | Thaumastura cora |
| 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 | 12,0 cm (4.7 in) | 8,1 cm (3.2 in) |
| Khối Lượng | 4,3 g (0.15 oz) | 2,4 g (0.08 oz) |
| Chế Độ Ăn | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore hovering at low-growing flowers in coastal scrub. Supplements nectar diet with tiny spiders and … |
| Số Trứng | 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.
Peruvian Sheartail
Delicate, purring trill with silvery shimmer; thin high notes given softly near Peruvian Andean flowers at altitude.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Peruvian Sheartail
Found along the arid Pacific coast of Peru from Lima to Tacna. Resident in desert scrub and coastal gardens at low elevations.
Tình Trạng Bảo Tồn
Anna's Hummingbird
Peruvian Sheartail
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
Peruvian Sheartail
Sparkling Violetear (alt): males with deep iridescent violet gorget; metallic green body; iridescent ear patches; 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.
Peruvian Sheartail
A tiny hummingbird (7-8 cm plus elongated tail in males, total 13-14 cm) found in arid coastal Peru. Males have a deeply forked, sheartail-shaped tail with elongated outer feathers. Nectarivore of desert scrub and gardens. A Peruvian near-endemic of coastal Sechura desert habitats.