Annakolibri vs Little Woodstar
Calypte anna verglichen mit Chaetocercus bombus
Side-by-Side Comparison
| Merkmal | Annakolibri | Little Woodstar |
|---|---|---|
| Wissenschaftlicher Name | Calypte anna | Chaetocercus bombus |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Trochilidae | Trochilidae |
| Erhaltungsstatus | Least Concern | Near Threatened |
| Länge | 10,0 cm (3.9 in) | — |
| Flügelspannweite | 12,0 cm (4.7 in) | 5,6 cm (2.2 in) |
| Gewicht | 4,3 g (0.15 oz) | 6,5 g (0.23 oz) |
| Ernährung | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | One of the world's smallest birds; feeds on nectar from tiny blossoms in humid forest … |
| Gelegegröße | 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.
Little Woodstar
Harsh, scratchy buzz with coarse texture; sustained rough vibration with raspy edges carrying across scrub habitat.
Geographic Range & Migration
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Little Woodstar
Found in Andean foothill forests from Colombia to Peru at 800-2,200 m. Classified as Vulnerable due to habitat loss.
Erhaltungsstatus
Annakolibri
Little Woodstar
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
Little Woodstar
Ruby-topaz Hummingbird: males with glittering golden-red topaz crown; iridescent ruby gorget; metallic green back; females duller
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.
Little Woodstar
A tiny hummingbird (7 cm) found in Andean foothill forests from Colombia to Peru at 800-2,200 m. Small even for a woodstar. Purple throat (males). Nectarivore of forest edges. Classified as Vulnerable due to habitat loss. One of the smallest hummingbirds.