Green-tailed Goldenthroat vs Rubinkehlkolibri
Polytmus theresiae verglichen mit Archilochus colubris
Side-by-Side Comparison
| Merkmal | Green-tailed Goldenthroat | Rubinkehlkolibri |
|---|---|---|
| Wissenschaftlicher Name | Polytmus theresiae | Archilochus colubris |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Trochilidae | Trochilidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | 8,5 cm (3.3 in) |
| Flügelspannweite | 11,3 cm (4.4 in) | 11,0 cm (4.3 in) |
| Gewicht | 3,575 g (0.13 oz) | 3,1 g (0.11 oz) |
| Ernährung | Nectarivore of open wetland margins and savanna; forages at diverse flower types. Takes tiny flies … | 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
Green-tailed Goldenthroat
Rough, grating buzz with coarse texture; sustained low-pitched trill with vibrating quality audible over some distance.
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
Green-tailed Goldenthroat
Found in open savanna and forest edges of the Guianas and Amazonian Venezuela and Brazil. Sea level to 600 m.
Rubinkehlkolibri
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
Erhaltungsstatus
Green-tailed Goldenthroat
Rubinkehlkolibri
How to Tell Them Apart
Green-tailed Goldenthroat
White-chinned Sapphire: males with glittering violet gorget and white chin; metallic green above; females with spotted white throat
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
Green-tailed Goldenthroat
A medium-sized hummingbird (10-11 cm) found in humid lowland forests and edges from the Guianas through Amazonia to Bolivia and Brazil. Green plumage with a golden-green throat and greenish tail. Nectarivore of forest edges and clearings.
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.