Annakolibri vs Bronze-tailed Comet
Calypte anna verglichen mit Polyonymus caroli
Side-by-Side Comparison
| Merkmal | Annakolibri | Bronze-tailed Comet |
|---|---|---|
| Wissenschaftlicher Name | Calypte anna | Polyonymus caroli |
| 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) | 12,9 cm (5.1 in) |
| Gewicht | 4,3 g (0.15 oz) | 5,125 g (0.18 oz) |
| Ernährung | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of high puna and queñual woodland; forages at Chuquiraga and Polylepis flowers. Gleans small … |
| 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.
Bronze-tailed Comet
Soft, thin twittering barely audible; delicate minute notes cascading gently almost lost in surrounding forest sounds.
Geographic Range & Migration
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Bronze-tailed Comet
Endemic to Peru in the Río Marañón drainage and adjacent valleys in arid scrub and dry forest. 1,800–3,200 m.
Erhaltungsstatus
Annakolibri
Bronze-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
Bronze-tailed Comet
Esmeraldas Woodstar: males with glittering purple gorget; metallic bronze-green above; white underparts; females green above with spots
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.
Bronze-tailed Comet
A medium-sized hummingbird (13-15 cm) endemic to the Andes of Peru at 2,700-4,000 m. Green plumage with a bronze-colored, forked tail. Nectarivore of montane scrub and Polylepis forest. Uncommon and restricted to high-elevation habitats.