White-vented Plumeleteer

The White-vented Plumeleteer, a hummingbird of the emeralds tribe Trochilini, is a small, vibrant bird with a length ranging from 10.5 to 12 cm. Males are slightly heavier than females, with the former weighing between 6 to 7.3 grams and the latter between 5.9 to 7.9 grams. This species is characterized by its metallic green upperparts and distinctive white undertail coverts.

Identification Tips

To identify the White-vented Plumeleteer, look for the males' dark metallic green upperparts with a bronzy crown and coppery bronze uppertail coverts. Their lower belly is whitish, contrasting with the bright metallic green lower breast. Females are paler with gray underparts and green speckles on the sides. The tail is blue-black with a bronze gloss, and the outer feathers have dull gray tips.

Habitat

These birds are found in various landscapes, including forest edges, semi-open woodlands, and scrublands. They are adaptable, inhabiting dry to wet forests and secondary growth areas, from sea level up to 2,000 meters in elevation.

Distribution

The White-vented Plumeleteer is distributed across Colombia, Ecuador, Panama, Peru, and Venezuela. Its range is divided among several subspecies, each occupying different geographical areas within these countries.

Behaviour

This species does not migrate but may exhibit local movements. It is known for its trap-lining feeding behavior, visiting a circuit of flowers, and defending rich nectar sources. It also catches small arthropods, displaying agility in hawking from perches and hover-gleaning.

Breeding

Breeding seasons vary by location, with nests being cups of plant down bound with spiderweb and adorned with moss and lichen. Nests are placed on tree branches, and the species' fledging period is approximately 21 days.

Diet and Feeding

The White-vented Plumeleteer's diet consists of nectar from a variety of flowering plants and small arthropods. It employs various foraging techniques, including trap-lining and aggressive defense of nectar sources.

Conservation status

The IUCN has classified the White-vented Plumeleteer as Least Concern. It has a large range and a substantial population, though numbers are believed to be decreasing. The species is considered uncommon to fairly common and can tolerate some habitat disturbance.