Tres Marias Hummingbird vs Rubinkehlkolibri
Cynanthus lawrencei verglichen mit Archilochus colubris
Side-by-Side Comparison
| Merkmal | Tres Marias Hummingbird | Rubinkehlkolibri |
|---|---|---|
| Wissenschaftlicher Name | Cynanthus lawrencei | Archilochus colubris |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Trochilidae | Trochilidae |
| Erhaltungsstatus | Near Threatened | Least Concern |
| Länge | — | 8,5 cm (3.3 in) |
| Flügelspannweite | 10,0 cm (3.9 in) | 11,0 cm (4.3 in) |
| Gewicht | 3,05 g (0.11 oz) | 3,1 g (0.11 oz) |
| Ernährung | Feeds on nectar from Tres Marias Island flowers; diet supplemented with small insects and spiders … | 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
Tres Marias Hummingbird
Pure, sustained whistle with bell-like clarity; single clear note ringing out then slowly fading in air.
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
Tres Marias Hummingbird
Endemic to the Tres Marías Islands off the Pacific coast of western Mexico. Resident in tropical deciduous forest.
Rubinkehlkolibri
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
Erhaltungsstatus
Tres Marias Hummingbird
Rubinkehlkolibri
How to Tell Them Apart
Tres Marias Hummingbird
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
Tres Marias Hummingbird
A medium-sized hummingbird (9-10 cm) endemic to the Tres Marías Islands off western Mexico. Green plumage. Recently split from Broad-billed Hummingbird. Nectarivore of tropical deciduous forest on the islands. A very range-restricted island endemic.
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.