Costa's Hummingbird vs Amethyst-throated Mountain-gem
Calypte costae مقارنةً بـ Lampornis amethystinus
Side-by-Side Comparison
| السمة | Costa's Hummingbird | Amethyst-throated Mountain-gem |
|---|---|---|
| الاسم العلمي | Calypte costae | Lampornis amethystinus |
| الرتبة | Caprimulgiformes | Caprimulgiformes |
| الفصيلة | Trochilidae | Trochilidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 8,9 cm (3.5 in) | 13,1 cm (5.2 in) |
| الوزن | 3,4000000000000004 g (0.12 oz) | 5,6000000000000005 g (0.20 oz) |
| النظام الغذائي | Nectarivore of Mojave Desert scrub, favouring desert lavender and sage. Supplements nectar with insects and … | Nectarivore of Mexican and Central American montane pine-oak forest; visits Ericaceae and Salvia. Gleans arthropods. |
| عدد البيض في الوضع | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
الموائل المشتركة
بلا
Costa's Hummingbird only
Amethyst-throated Mountain-gem only
Song & Call Comparison
Costa's Hummingbird
Melodic, flute-like ascending scale; smooth bright notes climbing steadily in cheerful morning territorial delivery.
Amethyst-throated Mountain-gem
Pure, sustained flute-like tone held steady; single clear note with barely perceptible vibrato in tropical shade.
Geographic Range & Migration
Costa's Hummingbird
Found in arid western North America from California to Mexico. Breeds in desert scrub; some populations resident year-round.
Amethyst-throated Mountain-gem
Found in montane forest from Mexico south through Guatemala and Honduras to El Salvador. 1,000–3,200 m.
حالة الحفاظ
Costa's Hummingbird
Amethyst-throated Mountain-gem
How to Tell Them Apart
Costa's Hummingbird
Crowned Woodnymph: males with brilliant iridescent violet crown; glittering green gorget; metallic green above; females green; spotted
Amethyst-throated Mountain-gem
Bumblebee Hummingbird: tiny; males with brilliant violet gorget; metallic green above; white underparts; females green above; spotted
About These Birds
Costa's Hummingbird
A small hummingbird (8-9 cm) of arid western North America from California to Mexico. Males have a brilliant iridescent purple crown and gorget that extends along the sides of the neck. Nectarivore of desert scrub and gardens. Thrives in extreme desert heat.
Amethyst-throated Mountain-gem
A medium-sized hummingbird (11-12 cm) found in mountain forests from Mexico to Honduras at 1,000-3,000 m. Males have an amethyst-purple throat. Nectarivore of pine-oak and cloud forest. Commonly visits feeders in Mexican highland gardens.