Colibrí Coliverde
Green-tailed Goldenthroat
Polytmus theresiae
Song
Green-tailed Goldenthroat
Appearance: The Green-tailed Goldenthroat is a small hummingbird measuring 8.6 cm in length. It has a characteristic appearance with a metallic green back and head. The underparts are white or pale gray. It has a green tail, which can appear slightly forked. The bill is long, straight, and black, adapted for feeding on nectar.
Habita: This species is found in open and semi-open areas, such as savannas, riverbanks, and edges of forests. It is found at low elevations, often below 300 m.
Behavior: The Green-tailed Goldenthroat feeds on nectar, which it extracts from flowers using its specialized bill. It consumes small insects and spiders for protein. It is capable of hovering in place while feeding, thanks to its rapid wing beats. Males are known to be territorial, often defending feeding areas from other hummingbirds..
Breeding: The breeding season varies depending on the region. Nests are cup-shaped and constructed from plant fibers and spider webs, often placed on a low branch or shrub. Females lay two white eggs, which they incubate alone. The incubation period lasts about 15 to 18 days, and the young fledge approximately 20 to 25 days after hatching.
Conservation Status: The Green-tailed Goldenthroat is classified as Least Concern due to its wide range and stable population.
MALE
FEMALE
Distribution
The Green-tailed Goldenthroat is found in the eastern part of the country in the Orinoco and Amazon regions. The bird is found in the departments of Amazon, Caquetá, Vaupés, Guaviare, Meta, Vichada aand Guanía.
Taxonomy
The Green-tailed Goldenthroat (Polytmus theresiae)
- Kingdom: Animalia
- Phylum: Chordata
- Class: Aves (Birds)
- Order: Caprimulgiformes
- Family: Trochilidae
- Genus: Polytmus
- Species: Polytmus theresiae
Vocalization
The vocalizations of the Green-tailed Goldenthroat are described as a series of high-pitched, squeaky notes or chirps. These sounds are used for communication between individuals during courtship or territorial displays.
Purpose
Territorial Defense: Males use vocalizations to defend their feeding territories. By vocalizing, they can assert dominance and warn others to stay away from their nectar sources.
Courtship: During the breeding season, males may use vocalizations as part of their courtship displays to attract females. These sounds are accompanied by aerial displays to showcase their physical prowess and vibrant plumage.
Communication: Vocalizations can serve as a means of communication between mates or between parents and their offspring. This can include signaling the presence of predators or coordinating feeding and nesting activities.
