Rubinkehlkolibri vs White-tailed Hillstar
Archilochus colubris verglichen mit Urochroa leucura
Side-by-Side Comparison
| Merkmal | Rubinkehlkolibri | White-tailed Hillstar |
|---|---|---|
| Wissenschaftlicher Name | Archilochus colubris | Urochroa leucura |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Trochilidae | Trochilidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | 8,5 cm (3.3 in) | — |
| Flügelspannweite | 11,0 cm (4.3 in) | 14,7 cm (5.8 in) |
| Gewicht | 3,1 g (0.11 oz) | 9,774999999999999 g (0.34 oz) |
| Ernährung | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … | Nectarivore of Peruvian montane shrubs; forages at Ericaceae and Puya flowers. Supplements with small insects. |
| Gelegegröße | 2 | -- |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Rubinkehlkolibri
Deciduous and mixed forests, woodland edges, gardens, and parks with flowering plants. Migrates across the Gulf of Mexico.
Song & Call Comparison
Rubinkehlkolibri
Soft, high-pitched chattering and twittering 'chee-dit'. Also produces a thin 'tik' call in flight. Wing beats create an audible high-pitched humming buzz during hovering.
White-tailed Hillstar
Sharp, emphatic two-note call; high accented first note followed by softer brief second, repeated persistently.
Geographic Range & Migration
Rubinkehlkolibri
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
White-tailed Hillstar
Found on the eastern Andean slope of Peru and Bolivia in montane cloud forest. 1,000–2,600 m elevation.
Erhaltungsstatus
Rubinkehlkolibri
White-tailed Hillstar
How to Tell Them Apart
Rubinkehlkolibri
Metallic green upperparts and greyish-white underparts. Males have a brilliant iridescent ruby-red gorget that appears black in poor light. Females lack the gorget.
Long, straight, thin black bill adapted for probing flowers
White-tailed Hillstar
Dusky Starfrontlet: males with iridescent purple gorget; metallic bronze-green; white flanks; females green above; spotted underparts
About These Birds
Rubinkehlkolibri
Der Rubinkehlkolibri ist der einzige im Osten Nordamerikas brütende Kolibri. Diese winzigen Vögel schlagen mit ihren Flügeln etwa 53 Mal pro Sekunde und können rückwärts, seitwärts und sogar kurzzeitig kopfüber fliegen. Auf ihrem Zug überqueren sie den Golf von Mexiko in einem außergewöhnlichen, ununterbrochenen Flug von 800 km.
White-tailed Hillstar
A medium-sized hummingbird (12-13 cm) found in Andean cloud forests of Peru and Bolivia at 2,000-3,500 m. Green plumage with white outer tail feathers visible in flight. Nectarivore of montane forest. Recently split from Rufous-gaped Hillstar.