Booted Racket-tail vs Rubinkehlkolibri
Ocreatus underwoodii verglichen mit Archilochus colubris
Side-by-Side Comparison
| Merkmal | Booted Racket-tail | Rubinkehlkolibri |
|---|---|---|
| Wissenschaftlicher Name | Ocreatus underwoodii | Archilochus colubris |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Trochilidae | Trochilidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | 8,5 cm (3.3 in) |
| Flügelspannweite | 8,5 cm (3.3 in) | 11,0 cm (4.3 in) |
| Gewicht | 2,8 g (0.10 oz) | 3,1 g (0.11 oz) |
| Ernährung | Nectarivore of Andean foothill forest; visits Ericaceae and Heliconia flowers. Catches small insects in aerial … | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … |
| 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
Booted Racket-tail
Melodic, rolling phrase with liquid quality; warm bubbly notes tumbling in pleasant continuous musical sequence.
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.
Geographic Range & Migration
Booted Racket-tail
Widespread in Andean foothill and cloud forests from Venezuela south through Colombia, Ecuador, and Peru. 200–1,800 m.
Rubinkehlkolibri
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
Erhaltungsstatus
Booted Racket-tail
Rubinkehlkolibri
How to Tell Them Apart
Booted Racket-tail
Blue-throated Starfrontlet: males with glittering blue gorget; metallic bronze-green; females green above; spotted buff underparts
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
About These Birds
Booted Racket-tail
A small hummingbird (8-10 cm plus 5-7 cm tail rackets in males) widely distributed in Andean cloud forests from Venezuela to Bolivia at 1,500-3,000 m. Males have long, wire-like outer tail feathers ending in dark blue racket tips and fluffy white leg puffs. A cloud forest icon.
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.