Anna's Hummingbird vs Green-tailed Trainbearer
Calypte anna เปรียบเทียบกับ Lesbia nuna
Side-by-Side Comparison
| คุณสมบัติ | Anna's Hummingbird | Green-tailed Trainbearer |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Calypte anna | Lesbia nuna |
| 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) | 10.3 cm (4.1 in) |
| น้ำหนัก | 4.3 g (0.15 oz) | 3.733333333333333 g (0.13 oz) |
| อาหาร | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of montane hedgerows and scrub; forages at diverse shrub flowers. Catches small insects in … |
| จำนวนไข่ | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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Anna's Hummingbird only
Green-tailed Trainbearer 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
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.
Green-tailed Trainbearer
Melodic, rolling phrase with liquid quality; warm bubbly notes tumbling loosely in pleasant continuous musical sequence.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Green-tailed Trainbearer
Widespread in open Andean habitats from Colombia south through Ecuador, Peru, and Bolivia. 1,500–4,000 m elevation.
สถานะการอนุรักษ์
Anna's Hummingbird
Green-tailed Trainbearer
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
Green-tailed Trainbearer
Chiribiqute Emerald: tiny; males with iridescent violet gorget; metallic bronze-green above; white underparts; 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.
Green-tailed Trainbearer
A medium-sized hummingbird (10 cm body + tail in males) found in Andean highlands from Venezuela to Peru at 2,000-3,800 m. Males have long green tail streamers, shorter than Black-tailed Trainbearer. Nectarivore of scrubby hillsides, gardens, and cloud forest edges.