Annakolibri vs Mountain Avocetbill
Calypte anna verglichen mit Opisthoprora euryptera
Side-by-Side Comparison
| Merkmal | Annakolibri | Mountain Avocetbill |
|---|---|---|
| Wissenschaftlicher Name | Calypte anna | Opisthoprora euryptera |
| 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) | 12,6 cm (5.0 in) |
| Gewicht | 4,3 g (0.15 oz) | 6,4 g (0.23 oz) |
| Ernährung | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of high montane forest; upturned bill tip accesses pendant epiphyte flowers. Gleans small insects … |
| 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.
Mountain Avocetbill
Thin, high-pitched twittering; delicate cascade of light notes with silvery quality delivered during aerial foraging.
Geographic Range & Migration
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Mountain Avocetbill
Found on both Andean slopes in Colombia and Ecuador in cloud forest at 2,000–3,200 m elevation. Uncommon.
Erhaltungsstatus
Annakolibri
Mountain Avocetbill
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
Mountain Avocetbill
Cozumel Emerald: tiny; males with glittering magenta 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.
Mountain Avocetbill
A small hummingbird (10-11 cm) with a distinctive upturned bill tip, unique among hummingbirds. Green plumage. Found in Andean cloud forests from Colombia to Bolivia at 2,400-3,500 m. Nectarivore specializing in pendant flowers. The only member of its genus.