Rufous-capped Thornbill vs Allen's Hummingbird
Chalcostigma ruficeps comparado con Selasphorus sasin
Side-by-Side Comparison
| Atributo | Rufous-capped Thornbill | Allen's Hummingbird |
|---|---|---|
| Nombre científico | Chalcostigma ruficeps | Selasphorus sasin |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Trochilidae | Trochilidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 11,6 cm (4.6 in) | 8,1 cm (3.2 in) |
| Peso | 3,6666666666666665 g (0.13 oz) | 3,1500000000000004 g (0.11 oz) |
| Dieta | Nectarivore of Peruvian and Bolivian puna; forages at Chuquiraga and low shrubs. Catches tiny arthropods. | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| Tamaño de la puesta | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Rufous-capped Thornbill
Melodic, descending phrase with warm timbre; clear notes stepping down smoothly in relaxed musical progression.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Rufous-capped Thornbill
Found on the eastern Andean slope from Ecuador south to Bolivia in lower montane forest. 1,200–2,600 m elevation.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
Estado de conservación
Rufous-capped Thornbill
Allen's Hummingbird
How to Tell Them Apart
Rufous-capped Thornbill
Purple-crowned Plovercrest: males with glittering violet crown; metallic green above; white underparts; females green with spotted below
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Rufous-capped Thornbill
Picoespina de cabeza rufa (Chalcostigma ruficeps), 10–11 cm. Corona y nuca de color rufo brillante, contrastando con el plumaje verde del cuerpo. Macho con garganta verde iridiscente. Habita en bordes de bosque y zonas arbustivas de los Andes del sur de Colombia, Ecuador y Perú.
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.