Annakolibri vs Violet-throated Metaltail
Calypte anna verglichen mit Metallura baroni
Side-by-Side Comparison
| Merkmal | Annakolibri | Violet-throated Metaltail |
|---|---|---|
| Wissenschaftlicher Name | Calypte anna | Metallura baroni |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Trochilidae | Trochilidae |
| Erhaltungsstatus | Least Concern | Vulnerable |
| Länge | 10,0 cm (3.9 in) | — |
| Flügelspannweite | 12,0 cm (4.7 in) | 11,4 cm (4.5 in) |
| Gewicht | 4,3 g (0.15 oz) | 4,4 g (0.16 oz) |
| Ernährung | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Ecuadorian treeline vegetation; specialized for Ericaceae blooms above 3000 m. Catches small 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.
Violet-throated Metaltail
Melodic, flute-like phrase with clear quality; smooth notes flowing pleasantly in quiet sequence at forest edge.
Geographic Range & Migration
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Violet-throated Metaltail
Endemic to a tiny area in the Cajas plateau region of southwestern Ecuador. 3,000–4,200 m. Critically endangered.
Erhaltungsstatus
Annakolibri
Violet-throated Metaltail
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
Violet-throated Metaltail
Green-throated Mountain-gem: males with glittering green gorget; metallic green above; white underparts; females green above; spotted
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.
Violet-throated Metaltail
A small hummingbird (9-10 cm) endemic to the Andes of southern Ecuador at 2,500-3,500 m. Males have a violet-purple throat. Nectarivore of cloud forest and páramo edges. Classified as Endangered due to limited range. Named after Baron Erich von Baroni.