Introduction
The Rufous-vented Whitetip (Urosticte ruficrissa) is a small hummingbird of the eastern Andean slopes in Colombia, Ecuador and northern Peru. It belongs to the hummingbird family Trochilidae and is one of two recognised species in the genus Urosticte. The species is generally associated with humid montane forest, cloud forest and forest edges.
Physical Description
The Rufous-vented Whitetip is approximately 9–10 cm long. Both sexes have shining green upperparts, a straight black bill, a pale mark behind the eye and a slightly forked tail with contrasting white markings.
The male is predominantly green, including the throat and underparts, with rufous or buffy undertail coverts. The central tail feathers are dusky bronze and have broad white tips, producing the distinctive whitetip pattern. The female is less brightly coloured, with green upperparts and whitish underparts marked with green. Her tail is usually less deeply forked, and the white markings are more prominent on the outer tail feathers.
Juveniles resemble females but may show brownish edges to the feathers of the head. Plumage variation has been reported, including occasional males with a purplish throat patch, although the typical male is green-throated.
Range and Habitat
The Rufous-vented Whitetip occurs along the eastern, or Amazonian, slope of the northern Andes. Its range extends from Huila and south-eastern Nariño in Colombia through eastern Ecuador to northern San Martín in Peru. It is a resident species rather than a long-distance migrant, although some local movements to higher elevations may occur after breeding.
It is generally found between about 1,350 and 2,400 metres above sea level, with many records concentrated in the range of approximately 1,600–2,200 metres. Its preferred habitat includes humid montane forest, partly open cloud forest, forest edges, clearings and other areas with flowering plants. The species usually forages in the lower and middle levels of the forest.
Some earlier taxonomic treatments combined the Rufous-vented Whitetip with the Purple-bibbed Whitetip (Urosticte benjamini), or recognised an additional form called Urosticte intermedia. Current treatments generally recognise U. ruficrissa and U. benjamini as separate species, with intermedia treated as an invalid or included form of the Rufous-vented Whitetip.
Where to See This Species
Colonso-Chalupas Biological Reserve, Napo Province, Ecuador
The reserve protects extensive eastern Andean forest in the species’ known range and has documented records of the Rufous-vented Whitetip. Look in humid montane forest, forest edges and flowering areas, particularly at suitable middle elevations. Access arrangements and trail availability should be confirmed locally before visiting, as this is a protected natural area rather than a conventional public birding garden.
Nearby accommodation: Hotels, guest houses, ecolodges and self-catering accommodation are available in Archidona and Tena.
Narupa Reserve, Napo Province, Ecuador
Narupa protects eastern Andean foothill forest and has a published reserve checklist that includes the Rufous-vented Whitetip. The reserve’s forest trails, edges and hummingbird garden provide suitable places to search, although the species is not guaranteed and may require patient observation.
Nearby accommodation: Camping is available at the reserve. Additional accommodation includes birding lodges, cabins and guest houses around Loreto, Archidona and the surrounding Loreto Road area.
Wildsumaco Wildlife Sanctuary, Napo Province, Ecuador
Wildsumaco is a recognised birding site in the eastern Ecuadorian Andes, with documented Rufous-vented Whitetip records and suitable humid forest habitat. The sanctuary’s trails and flowering areas are particularly appropriate for searching for hummingbirds in the lower and middle forest levels.
Nearby accommodation: Lodge and cabin accommodation is available at the sanctuary itself, with further hotels and guest houses in Archidona and Tena.
Behaviour and Diet
The Rufous-vented Whitetip is generally sedentary, although individuals may move locally to higher elevations after the breeding period. It usually forages alone in the lower and middle strata of humid forest and along forest edges.
Nectar forms the main part of its diet. Recorded food plants include bromeliads and flowers of Clusia and Palicourea. The species also takes small insects, capturing them in short hawking flights from a perch and occasionally gleaning them from leaves. By visiting flowers, it contributes to pollination within the montane forest ecosystem.
Breeding has been recorded mainly from January to April. The female builds a small cup-shaped nest, using materials such as moss and fine plant fibres, usually placing it in vines or other vegetation a few metres above the ground. The typical clutch contains two eggs, which are incubated by the female for approximately 15–18 days.
Identification Tips
- Look for a small, green hummingbird with a slightly forked, dusky bronze tail.
- The male’s broad white tips on the central tail feathers are especially distinctive and are often easiest to see from behind.
- The rufous or buffy undertail coverts help explain the species’ common name.
- Females have whitish, green-spotted underparts and usually show white on the outer tail feathers rather than the broad central white tips typical of males.
- The species is most likely to be confused with the Purple-bibbed Whitetip, but the Rufous-vented Whitetip normally lacks the latter’s conspicuous purple throat patch and has rufous undertail coverts.
- The female may also resemble some other green-and-white Andean hummingbirds, but the combination of size, white tail markings, green spotting below and pale undertail area is useful for identification.
Conservation Status
The Rufous-vented Whitetip is currently assessed as Least Concern. Its population size has not been reliably quantified, and the species is generally described as uncommon or locally rare across its restricted Andean range.
The principal concern is the continuing loss and fragmentation of humid montane forest, particularly through logging, agricultural expansion and other land conversion. Habitat protection in reserves and national parks, together with the maintenance of forest corridors and restoration of degraded cloud forest, remains important for the species and the wider montane bird community.
Frequently Asked Questions
Where does the Rufous-vented Whitetip live?
It lives on the eastern slopes of the Andes in Colombia, Ecuador and northern Peru, mainly in humid montane forest, cloud forest and forest edges.
What does the Rufous-vented Whitetip look like?
It is a small green hummingbird with a slightly forked bronze-coloured tail and conspicuous white tail markings. Males have green underparts and rufous undertail coverts, while females have whitish, green-spotted underparts.
What does the Rufous-vented Whitetip eat?
It feeds mainly on nectar from flowering plants, including bromeliads, Clusia and Palicourea. It also catches small insects in flight or gleans them from vegetation.
Is the Rufous-vented Whitetip migratory?
No. It is generally resident, although local movements to higher elevations may occur after the breeding season.
When does the Rufous-vented Whitetip breed?
Breeding records are concentrated from January to April. The female usually builds a small moss-lined cup nest and incubates a clutch of two eggs.
Is the Rufous-vented Whitetip endangered?
It is currently classified as Least Concern. However, forest clearance and fragmentation remain important local threats, particularly where eastern Andean cloud forest is being logged or converted to agriculture.
References
- Cornell Lab of Ornithology, Birds of the World
- Key Biodiversity Areas Partnership
- Fundación Jocotoco
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