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Photo: © Ed Harper eBird S48400062 Macaulay Library ML 114288351
wire-crested-thorntail

Wire-crested Thorntail

Discosura popelairii
Cola-de-lira Guamero
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Song

Wire-crested Thorntail

Appearance: The Wire-crested Thorntail is a small hummingbird measuring about 10-11 cm in length, including its distinctive tail. Males have a striking appearance with a metallic green body and an elongated, wire-like crest on the head. Their tail is long and forked, with thin outer feathers resembling wires, hence the name "thorntail." Females are less flamboyant, with a more subdued green plumage and a shorter tail without the wire-like extensions. They lack the crest seen in males.
Habitat: This species is found in subtropical or tropical moist lowland forests and montane forests. They are often observed at elevations ranging from 500 to 1,800 m above sea level.
Behavior: The Wire-crested Thorntail feeds on nectar, which it obtains from a variety of flowering plants. It also consumes small insects and spiders for protein. They are known for their agile flight, which allows them to hover in place while feeding. Males are often territorial, defending rich feeding areas from other hummingbirds.
Breeding: The breeding habits of the Wire-crested Thorntail are not extensively documented, but they are presumed to have similar nesting behaviors to other hummingbirds, building small cup-shaped nests. Females are responsible for incubating the eggs and caring for the young.
Conservation status: As of the latest assessments, the Wire-crested Thorntail is classified as Least Concern on the IUCN Red List.
MALE
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Photo: © Ed Harper eBird S48400062 Macaulay Library ML 114288351
FEMALE
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Photo : © Gerald Friesen eBird S52184481 Macaulay Library ML 137847431

Distribution

The Wire-crested Thorntail is found in eastern slopes of the eastern mountain range in the departments of Huila, Caquetá, Putumayo. Although not as widespread as some other hummingbird species, they are common in these habitats. Birdwatchers and researchers continue to study this unique species to better understand its ecology and needs.

Taxonomy

The Wire-crested Thorntail (Discosura popelairii)
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Aves (Birds)
  • Order: Caprimulgiformes
  • Family: Trochilidae
  • Genus: Discosura 
  • Species: Discosura popelairii

Vocalization

The Wire-crested Thorntail is a small hummingbird known for its distinctive appearance and unique vocalizations. Here are some details about its vocalization and purpose:

Vocalization
Sounds: The Wire-crested Thorntail produces a variety of sounds that are common in hummingbirds. These include high-pitched, rapid series of notes or chips. The exact vocalizations can vary among individuals and situations.
Purpose
Territorial Claims: Like many hummingbirds, the Wire-crested Thorntail uses vocalizations to establish and defend its territory. These calls can serve as warnings to other hummingbirds to stay away from its feeding areas.
Mating: During the breeding season, males may use vocalizations as part of their courtship displays to attract females. These sounds can be accompanied by visual displays, such as showing off their iridescent plumage or engaging in aerial maneuvers.

Communication: Vocalizations can  facilitate communication between mates or signal alarm when a predator is nearby.