Annakolibri vs White-throated Mountain-gem
Calypte anna verglichen mit Lampornis castaneoventris
Side-by-Side Comparison
| Merkmal | Annakolibri | White-throated Mountain-gem |
|---|---|---|
| Wissenschaftlicher Name | Calypte anna | Lampornis castaneoventris |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Trochilidae | Trochilidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | 10,0 cm (3.9 in) | — |
| Flügelspannweite | 12,0 cm (4.7 in) | 12,2 cm (4.8 in) |
| Gewicht | 4,3 g (0.15 oz) | 5,58 g (0.20 oz) |
| Ernährung | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Costa Rican highlands; visits diverse cloud-forest flowers. Supplements diet with small insects and … |
| Gelegegröße | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Annakolibri
Chaparral, coastal sage scrub, gardens, parks, and open woodland along the Pacific coast. One of few hummingbirds not fully migratory.
Song & Call Comparison
Annakolibri
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.
White-throated Mountain-gem
Thin, reedy trill with wavering quality; soft rapid notes with gentle tremolo effect given from cover.
Geographic Range & Migration
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
White-throated Mountain-gem
Endemic to the highlands of Costa Rica and western Panama in cloud forest. 1,200–2,800 m. Resident.
Erhaltungsstatus
Annakolibri
White-throated Mountain-gem
How to Tell Them Apart
Annakolibri
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
White-throated Mountain-gem
About These Birds
Annakolibri
Der Annakolibri ist der häufigste Kolibri entlang der Pazifikküste und eine von nur drei Kolibriarten, die ganzjährig in den USA verweilen. Männchen zeigen spektakuläre Sturzflüge aus 40 Metern Höhe und fangen sich mit einem lauten, von den Schwanzfedern erzeugten Zwitschern ab. Nachts kann ihre Körpertemperatur nahezu auf Umgebungstemperatur absinken, um Energie zu sparen.
White-throated Mountain-gem
A medium-sized hummingbird (10-11 cm) endemic to the highlands of Costa Rica and western Panama at 1,000-2,500 m. Males have a white throat and chestnut belly. Nectarivore of cloud forest and forest edges. A Talamanca-Chiriquí endemic.