| Black-thighed puffleg | |
|---|---|
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Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Class: | Aves |
| Clade: | Strisores |
| Order: | Apodiformes |
| Family: | Trochilidae |
| Genus: | Eriocnemis |
| Species: | E. derbyi |
| Binomial name | |
| Eriocnemis derbyi | |
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| Synonyms | |
Eriocnemis derbianus | |
The black-thighed puffleg (Eriocnemis derbyi) is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is found in Colombia and Ecuador. [3] [4]
The black-thighed puffleg is monotypic though at one time it was thought to have two subspecies. [5]
The black-thighed puffleg is about 10 cm (3.9 in) long. It has a straight blackish bill. Males are mostly shining golden green overall, sometimes with black highlights, and has glittering malachite green upper- and undertail coverts. Their leg puffs are black and the tail is forked and black. Females are similar but have white underparts with green spots, and their leg puffs are a mix of black and grayish white. The female also has a blue tinge to the forehead. Juveniles resemble females. [5]
The black-thighed puffleg is found in the Central Andes of Colombia from Tolima Department and south to Imbabura Province in northwestern Ecuador. It inhabits bushy pastures and the edges of humid forest, and in Colombia has also been recorded in shrubby ravines. It prefers somewhat open landscapes. In elevation it ranges from 2,500 to 3,600 m (8,200 to 11,800 ft) and is most common above 2,900 m (9,500 ft). [5]
The black-thighed puffleg makes seasonal elevational movements. [5]
The black-thighed puffleg feeds on nectar, usually at the flowers of low-growing plants like Fuchsia and Arecaceae. Its diet also includes insects taken by hawking. [5]
Very little is known about the black-thighed puffleg's breeding phenology. Its nesting season has not been defined but appears to include February. The female incubates the two white eggs; the incubation period and time to fledging are not known. [5]
The black-thighed puffleg's only described vocalization is "a short buzzy trill 'tzzrr', repeated at irregular intervals". It is given both from a perch and while hovering, and is very different than the sounds of other Eriocnemis pufflegs. [5]
The IUCN has assessed the black-thighed puffleg as Near Threatened. It has a moderately small range; its population size is not known and believed to be decreasing due to habitat loss. [1] It is considered uncommon to locally common, and "[r]eadily takes to man-made habitats like pastures and gardens". [5]
The green thorntail is a small hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae. It is found in Colombia, Costa Rica, Ecuador, and Panama.
The marvelous spatuletail is an endangered species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is endemic to northern Peru.
The turquoise-throated puffleg, also known as Godin's puffleg, is a species of hummingbird from Ecuador. It is mostly green with blue undertail coverts and white powder-puffs of downy feathers on the legs, and the male has a bluish-purple throat patch. It is only known from a few specimens taken in the nineteenth century and its taxonomic position is unclear. The type of habitat in which the type species was obtained has largely disappeared, and recent surveys trying to find this bird have failed. The International Union for Conservation of Nature believes it may be extinct, but there is a possibility that some individuals remain, so the bird has been rated as "critically endangered".
Eriocnemis is a genus of hummingbirds, which - together with the species in the genus Haplophaedia - are known as pufflegs. They occur in humid forest, woodland and shrub at altitudes of 1000 to 4800 m. asl in the Andes of Argentina, Bolivia, Peru, Ecuador, Colombia, and Venezuela. The males have a colourful green, coppery or blue plumage, and the females are generally somewhat duller. The most striking feature of both sexes in the genus Eriocnemis are their dense snow-white leg-puffs which consist of feather tufts that resemble woolly panties. One species, the black-thighed puffleg - is characterized by black coloured leg-puffs. Most have a contrasting blue, purple or coppery-red vent, but this is green in the black-thighed and emerald-bellied puffleg. Further common features of all species are the straight black bill and the slightly to deeply forked tail. The genus name was coined by the German naturalist Ludwig Reichenbach who called them Snowy panties.
The colorful puffleg is an Endangered species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is endemic to Colombia.
The gorgeted puffleg is a Critically Endangered species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is endemic to Colombia. It was discovered in 2005 and confirmed as a species new to science in 2007.
The velvet-purple coronet is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is found in Colombia and Ecuador.
The white-bellied woodstar is a species of hummingbird in tribe Mellisugini of subfamily Trochilinae, the "bee hummingbirds". It is found in Bolivia, Colombia, Ecuador, and Peru.
The western emerald is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Colombia and Ecuador.
The emerald-bellied puffleg is a species of hummingbird in the "brilliants", tribe Heliantheini in the subfamily Lesbiinae. It is found in Colombia, Ecuador, and Peru.
The coppery-bellied puffleg is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is found in Colombia and Venezuela.
The blue-capped puffleg is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is found in Argentina and Bolivia.
The sapphire-vented puffleg is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is found in Colombia, Ecuador, Peru, and possibly Venezuela.
The golden-breasted puffleg is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is found in Colombia and Ecuador.
The glowing puffleg is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is found in Colombia, Ecuador, Peru, and Venezuela.
The buff-thighed puffleg is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is found in Bolivia and Peru.
Haplophaedia is a small genus of hummingbirds, which – together with the members of the genus Eriocnemis – are known as pufflegs. They are found at low levels in humid forest, woodland and shrub at 1200 to 3100 m altitudes. asl in the Andes of Bolivia, Peru, Ecuador, and Colombia. All species have a straight black bill, a coppery-green plumage, and a slightly forked dark blue tail. The leg-puffs are white in the greenish and hoary pufflegs, and buff-tinged in the buff-thighed puffleg.
The greenish puffleg is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is found in Colombia, Ecuador, Panama, and Peru.
The hoary puffleg is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is found in Colombia and Ecuador.
The viridian metaltail is a species of hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae. It is found in Colombia and Ecuador.
