Anna's Hummingbird vs Tepui Goldenthroat
Calypte anna مقارنةً بـ Polytmus milleri
Side-by-Side Comparison
| السمة | Anna's Hummingbird | Tepui Goldenthroat |
|---|---|---|
| الاسم العلمي | Calypte anna | Polytmus milleri |
| الرتبة | Caprimulgiformes | Caprimulgiformes |
| الفصيلة | Trochilidae | Trochilidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | 10,0 cm (3.9 in) | — |
| طول الجناح | 12,0 cm (4.7 in) | 12,8 cm (5.0 in) |
| الوزن | 4,3 g (0.15 oz) | 4,76 g (0.17 oz) |
| النظام الغذائي | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore visiting tepui shrub flowers and lowland grasses. Supplements nectar with small arthropods gleaned from … |
| عدد البيض في الوضع | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
الموائل المشتركة
بلا
Anna's Hummingbird only
Tepui Goldenthroat 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.
Tepui Goldenthroat
Pure, bell-like tone with long resonance; single clear note ringing out then slowly fading in open woodland.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Tepui Goldenthroat
Found on tepui plateaus of Venezuela and adjacent Guyana and Brazil in open highland vegetation. 1,200–2,800 m.
حالة الحفاظ
Anna's Hummingbird
Tepui Goldenthroat
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
Tepui Goldenthroat
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.
Tepui Goldenthroat
A medium-sized hummingbird (10-11 cm) endemic to the tepui highlands of southern Venezuela and adjacent Guyana. Green plumage with a golden throat. Nectarivore of tepui scrub and forest edges. Restricted to the Pantepui region above 1,000 m. Poorly known.