Rubinkehlkolibri vs Black-billed Streamertail
Archilochus colubris verglichen mit Trochilus scitulus
Side-by-Side Comparison
| Merkmal | Rubinkehlkolibri | Black-billed Streamertail |
|---|---|---|
| Wissenschaftlicher Name | Archilochus colubris | Trochilus scitulus |
| 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) | 13,0 cm (5.1 in) |
| Gewicht | 3,1 g (0.11 oz) | 4,7 g (0.17 oz) |
| Ernährung | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … | Nectarivore probing tubular flowers in humid forest. Supplements nectar diet with small insects and spiders … |
| Gelegegröße | 2 | 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.
Black-billed Streamertail
Buzzy, insect-like sustained trill; continuous high-frequency vibration with rapid modulation near nectar flowers.
Geographic Range & Migration
Rubinkehlkolibri
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
Black-billed Streamertail
Endemic to the eastern Blue Mountains of Jamaica. Restricted to montane forest. Sometimes treated as subspecies.
Erhaltungsstatus
Rubinkehlkolibri
Black-billed Streamertail
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
Black-billed Streamertail
Black-faced Coucal: glossy black head; rufous-brown wings; black underparts; red eye; long dark tail; sexually similar plumage
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.
Black-billed Streamertail
A hummingbird (9-10 cm body + long tail streamers in males) endemic to the eastern Blue Mountains of Jamaica. Males similar to Red-billed Streamertail but with a black bill. Nectarivore of montane forest. Sometimes considered a subspecies of Red-billed Streamertail.