Bronze-tailed Thornbill vs Allen's Hummingbird
Chalcostigma heteropogon comparado con Selasphorus sasin
Side-by-Side Comparison
| Atributo | Bronze-tailed Thornbill | Allen's Hummingbird |
|---|---|---|
| Nombre científico | Chalcostigma heteropogon | Selasphorus sasin |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Trochilidae | Trochilidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 14,1 cm (5.6 in) | 8,1 cm (3.2 in) |
| Peso | 5,65 g (0.20 oz) | 3,1500000000000004 g (0.11 oz) |
| Dieta | Nectarivore of high Andean grasslands and shrublands; visits Ericaceae and Gentianaceae blooms. Gleans 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
Hábitats compartidos
Bronze-tailed Thornbill only
Allen's Hummingbird only
Ninguno
Song & Call Comparison
Bronze-tailed Thornbill
Deep, hollow churring with resonant bass; prolonged low buzzing audible at range through open forest edge.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Bronze-tailed Thornbill
Found in high Andean grassland and scrub from Venezuela through Colombia to Ecuador at 2,800–4,200 m.
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
Bronze-tailed Thornbill
Allen's Hummingbird
How to Tell Them Apart
Bronze-tailed Thornbill
Mangrove Hummingbird: tiny; males with violet gorget; metallic green above; white-spotted underparts; females green above; spotted
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Bronze-tailed Thornbill
Picoespina de barba bronce (Chalcostigma heteropogon), 11–12 cm. Macho con garganta verde bronceada brillante y cola alargada. Habita en páramos y matorrales subalpinos de los Andes de Venezuela y Colombia. Se alimenta de néctar. Especie escasa con distribución restringida.
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.