Annakolibri vs Red-tailed Comet
Calypte anna verglichen mit Sappho sparganurus
Side-by-Side Comparison
| Merkmal | Annakolibri | Red-tailed Comet |
|---|---|---|
| Wissenschaftlicher Name | Calypte anna | Sappho sparganurus |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Trochilidae | Trochilidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | 10,0 cm (3.9 in) | — |
| Flügelspannweite | 12,0 cm (4.7 in) | 12,6 cm (5.0 in) |
| Gewicht | 4,3 g (0.15 oz) | 5,4 g (0.19 oz) |
| Ernährung | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Andean high-altitude scrub; visits Chuquiraga and Ericaceae flowers. Catches small insects near blooms. |
| Gelegegröße | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Annakolibri
Chaparral, coastal sage scrub, gardens, parks, and open woodland along the Pacific coast. One of few hummingbirds not fully migratory.
Song & Call Comparison
Annakolibri
Male produces a complex, scratchy song with buzzy 'dzzzzt' notes. Gives a nasal 'chee-chee-chee'. Males sing year-round, even in winter; one of few hummingbirds with true song.
Red-tailed Comet
Pure, bell-like tones in descending sequence; clear musical notes stepping down smoothly with resonant ringing quality.
Geographic Range & Migration
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Red-tailed Comet
Found in the Andes and Patagonian scrub of Argentina and Bolivia from 1,000–4,200 m. Partly migratory southward.
Erhaltungsstatus
Annakolibri
Red-tailed Comet
How to Tell Them Apart
Annakolibri
Metallic bronze-green upperparts. Males have an iridescent rose-red crown and gorget. Females have green upperparts with grey underparts and a small red gorget patch.
Medium-length, straight, thin black bill
Red-tailed Comet
Purple-throated Woodstar: males with glittering rose-pink gorget; metallic green above; white underparts; tiny; females spotted below
About These Birds
Annakolibri
Der Annakolibri ist der häufigste Kolibri entlang der Pazifikküste und eine von nur drei Kolibriarten, die ganzjährig in den USA verweilen. Männchen zeigen spektakuläre Sturzflüge aus 40 Metern Höhe und fangen sich mit einem lauten, von den Schwanzfedern erzeugten Zwitschern ab. Nachts kann ihre Körpertemperatur nahezu auf Umgebungstemperatur absinken, um Energie zu sparen.
Red-tailed Comet
A stunning hummingbird (15-22 cm including tail) found in dry inter-Andean valleys from Bolivia to northwestern Argentina at 2,000-4,500 m. Males have a deeply forked, iridescent red-orange tail. Nectarivore of arid scrub and cactus flowers. An iconic Andean species.