Violet-tailed Sylph vs Annakolibri
Aglaiocercus coelestis verglichen mit Calypte anna
Side-by-Side Comparison
| Merkmal | Violet-tailed Sylph | Annakolibri |
|---|---|---|
| Wissenschaftlicher Name | Aglaiocercus coelestis | Calypte anna |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Trochilidae | Trochilidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | 10,0 cm (3.9 in) |
| Flügelspannweite | 12,4 cm (4.9 in) | 12,0 cm (4.7 in) |
| Gewicht | 5,483333333333334 g (0.19 oz) | 4,3 g (0.15 oz) |
| Ernährung | Nectarivore with elongated tail foraging at diverse montane flowers. Catches small arthropods near flowering bromeliads. | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … |
| 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
Violet-tailed Sylph
Sharp, emphatic two-note call; first note high and accented, second softer and brief, delivered at measured pace.
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.
Geographic Range & Migration
Violet-tailed Sylph
Found on the western Andean slope and Pacific foothills of Colombia and Ecuador in humid forest. 300–1,600 m.
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Erhaltungsstatus
Violet-tailed Sylph
Annakolibri
How to Tell Them Apart
Violet-tailed Sylph
Allen's Hummingbird: males with brilliant copper-orange back; glittering red-orange gorget; green crown; females green above with rufous
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
About These Birds
Violet-tailed Sylph
A spectacular hummingbird (10 cm body + 13 cm tail in males) endemic to the western Andes of Colombia and Ecuador at 1,000-2,500 m. Males have dazzling violet-blue outer tail streamers. Nectarivore of cloud forest and forest edges. Replaced by Long-tailed Sylph east of the Andes.
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.