Black-eared fairy

The black-eared fairy (Heliothryx auritus) is a species of hummingbird in the family Trochilidae. It is found in tropical forests in South America.

Black-eared fairy

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Apodiformes
Family: Trochilidae
Genus: Heliothryx
Species:
H. auritus
Binomial name
Heliothryx auritus
(Gmelin, 1788)

Subspecies

Three sub-species are recognised:[2]

  • Heliothryx auritus auriculatus (Nordmann, 1835)
  • Heliothryx auritus auritus (Gmelin, 1788)
  • Heliothryx auritus phainolaemus Gould, 1855

Description

The black-eared fairy is a medium-sized tropical hummingbird. It has bright green upperparts, white underparts and a black mask. The relatively short, straight bill is black. The graduated tail is blue-black in the center, with white outer tail feathers (i.e. typically appear blue-black from above, white from below). Depending on subspecies, the male has a green malar or throat. The female is similar, but with a longer tail and no green malar/throat.

Distribution and habitat

This bird is found in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela. Its natural habitat is subtropical or tropical moist lowland forest.

Behaviour
Heliothryx auritus. Mounted specimen

Breeds all year around, nest is a cup made of down attached to a branch about 3-30 meter above ground. Clutch size is 2 eggs incubated by female for about 15 days. Young fledge after 23–26 days. Itbreeds for the first time when in its second year.

This hummingbird hawks small insects in the air, as well as gleaning them from foliage. When feeding on nectar, it sometimes pierces a small hole at the base of large flowers, giving access to nectar that otherwise would only be accessible to hummingbirds with longer bills.

Status

The black-eared fairy has a very large range. The population may be in decline because of degradation of its rainforest habitat and it is described as being uncommon. Nevertheless, the IUCN has listed it as being of "Least Concern" as the rate of decline in population is not considered to be fast enough to justify placing it in a more threatened category.[1]

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References
  1. BirdLife International (2012). "Heliothryx auritus". IUCN Red List of Threatened Species. 2012. Retrieved 26 November 2013.CS1 maint: ref=harv (link)
  2. Peterson, Alan. "Apodiformes". Zoonomen. Retrieved 2013-12-20.
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