Annakolibri vs Purple-collared Woodstar
Calypte anna verglichen mit Myrtis fanny
Side-by-Side Comparison
| Merkmal | Annakolibri | Purple-collared Woodstar |
|---|---|---|
| Wissenschaftlicher Name | Calypte anna | Myrtis fanny |
| 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) | 7,9 cm (3.1 in) |
| Gewicht | 4,3 g (0.15 oz) | 2,4 g (0.08 oz) |
| Ernährung | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Andean foothills and inter-valley scrub; visits small tubular flowers. Supplements with tiny arthropods. |
| 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.
Purple-collared Woodstar
Harsh, grating buzz with mechanical quality; abrupt dry trill issued suddenly then stopping in sharp silence.
Geographic Range & Migration
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Purple-collared Woodstar
Found in open habitats, gardens, and scrub from southern Ecuador south through Peru to northwestern Chile. Sea level to 3,000 m.
Erhaltungsstatus
Annakolibri
Purple-collared Woodstar
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
Purple-collared Woodstar
White-tailed Sabrewing: males iridescent blue gorget; metallic green; white outer tail; females green above; spotted white 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.
Purple-collared Woodstar
A tiny hummingbird (8-9 cm) found in arid western Peru and southwestern Ecuador at sea level to 2,500 m. Males have a purple collar. Nectarivore of desert scrub, gardens, and river valleys. Adapted to extremely arid coastal environments.