Annakolibri vs Short-tailed Emerald
Calypte anna verglichen mit Chlorostilbon poortmani
Side-by-Side Comparison
| Merkmal | Annakolibri | Short-tailed Emerald |
|---|---|---|
| Wissenschaftlicher Name | Calypte anna | Chlorostilbon poortmani |
| 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) | 8,2 cm (3.2 in) |
| Gewicht | 4,3 g (0.15 oz) | 3,5 g (0.12 oz) |
| Ernährung | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Feeds on nectar from scrub and forest-edge flowers in Colombia and Venezuela. Supplements with 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.
Short-tailed Emerald
Thin, reedy chip note with soft delivery; barely audible single staccato sound given from dense cover.
Geographic Range & Migration
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Short-tailed Emerald
Found in Andean cloud forests from Colombia to Venezuela at 1,500-2,800 m elevation. Resident in montane forest.
Erhaltungsstatus
Annakolibri
Short-tailed Emerald
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
Short-tailed Emerald
Polyerata hummingbird: males with glittering green gorget; metallic green above; white underparts; females green above; spotted 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.
Short-tailed Emerald
A small hummingbird (7-8 cm) found in Andean cloud forests from Colombia to Venezuela at 1,500-2,800 m. Green plumage with a notably short tail. Nectarivore of montane forest undergrowth and edges. Named for its unusually short tail for an emerald.