Annakolibri vs Viridian Metaltail
Calypte anna verglichen mit Metallura williami
Side-by-Side Comparison
| Merkmal | Annakolibri | Viridian Metaltail |
|---|---|---|
| Wissenschaftlicher Name | Calypte anna | Metallura williami |
| 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) | 11,5 cm (4.5 in) |
| Gewicht | 4,3 g (0.15 oz) | 4,6 g (0.16 oz) |
| Ernährung | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Ecuadorian and Colombian montane shrubs; visits Brachyotum and Ericaceae. Gleans tiny insects from … |
| 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.
Viridian Metaltail
Sharp, emphatic chip repeated rapidly; clean staccato note with forceful attack given insistently near territory.
Geographic Range & Migration
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Viridian Metaltail
Found in cloud forests and páramo of Colombia and Ecuador on both Andean slopes. 2,400–4,000 m elevation.
Erhaltungsstatus
Annakolibri
Viridian 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
Viridian Metaltail
Blue-throated Mountain-gem: tiny; males with brilliant blue gorget; metallic green above; white underparts; females green above; 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.
Viridian Metaltail
A small hummingbird (9-10 cm) found in Andean cloud forests from Colombia to Ecuador at 2,000-3,500 m. Males have a glittering green tail. Nectarivore of montane forest edges and flowering shrubs. Named after the British naturalist M.C. William.