Bolivian Starfrontlet vs Allen's Hummingbird
Coeligena violifer compared with Selasphorus sasin
Side-by-Side Comparison
| Attribute | Bolivian Starfrontlet | Allen's Hummingbird |
|---|---|---|
| Scientific Name | Coeligena violifer | Selasphorus sasin |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Trochilidae | Trochilidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 14.6 cm (5.7 in) | 8.1 cm (3.2 in) |
| Weight | 7.675 g (0.27 oz) | 3.1500000000000004 g (0.11 oz) |
| Diet | Nectarivore of Colombian and Venezuelan Andean cloud forest; visits Ericaceae and epiphyte blooms. Gleans small … | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| Clutch Size | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Bolivian Starfrontlet
Bright, whistled descending phrase; clean notes stepping down smoothly with precision and musical elegance in Andes.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Bolivian Starfrontlet
Found in Andean cloud forests of Bolivia and Peru on the eastern slope at 1,800–3,400 m elevation.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
Conservation Status
Bolivian Starfrontlet
Allen's Hummingbird
About These Birds
Bolivian Starfrontlet
A medium-sized hummingbird (13-14 cm) found in the Andes from Peru to Bolivia at 2,500-3,500 m. Males have violet breast and green body. Nectarivore of cloud forest and páramo edges. An attractive Andean starfrontlet with iridescent violet patches.
Allen's Hummingbird
A small hummingbird (8-9 cm) breeding along the Pacific coast from Oregon to southern California. Males have an orange-red throat and rufous flanks. Closely related to Rufous Hummingbird. Partial migrant; some populations resident on Channel Islands. Named after Thomas Allen.