Anna's Hummingbird vs Crowned Woodnymph
Calypte anna เปรียบเทียบกับ Thalurania colombica
Side-by-Side Comparison
| คุณสมบัติ | Anna's Hummingbird | Crowned Woodnymph |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Calypte anna | Thalurania colombica |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Trochilidae | Trochilidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | 10.0 cm (3.9 in) | — |
| กว้างปีก | 12.0 cm (4.7 in) | 10.5 cm (4.1 in) |
| น้ำหนัก | 4.3 g (0.15 oz) | 4.34 g (0.15 oz) |
| อาหาร | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Feeds on nectar from understory herbs and epiphytes in humid forest. Supplements diet with insects … |
| จำนวนไข่ | 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.
Crowned Woodnymph
Sharp, crackling chatter with percussive quality; rapid dry notes delivered forcefully during active territory defense.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Crowned Woodnymph
Found in humid forests from Guatemala to Peru. Resident in lowland and montane forests on both slopes of the Andes.
สถานะการอนุรักษ์
Anna's Hummingbird
Crowned Woodnymph
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
Crowned Woodnymph
White-quilled Bustard: males with white wing quills visible in flight; brown-vermiculated above; pale below; black belly band
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.
Crowned Woodnymph
A medium-sized hummingbird (10-11 cm) found in humid forests from Guatemala to Peru. Males have a brilliant violet-blue crown and green body. Nectarivore of forest and forest edges. One of the most common woodnymph hummingbirds in Central and South America.