Puff-throated Babbler
Encyclopedia
The Puff-throated Babbler or Spotted Babbler (Pellorneum ruficeps) is a species of passerine
Passerine
A passerine is a bird of the order Passeriformes, which includes more than half of all bird species. Sometimes known as perching birds or, less accurately, as songbirds, the passerines form one of the most diverse terrestrial vertebrate orders: with over 5,000 identified species, it has roughly...

 bird found in Asia. They are found in scrub and moist forest mainly in hilly regions. They forage in small groups on the forest floor, turning around leaf litter to find their prey and usually staying low in the undergrowth where they can be hard to spot. They however have loud and distinct calls, including a morning song, contact and alarm calls. It is the type species
Type species
In biological nomenclature, a type species is both a concept and a practical system which is used in the classification and nomenclature of animals and plants. The value of a "type species" lies in the fact that it makes clear what is meant by a particular genus name. A type species is the species...

 of the genus
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 Pellorneum which may however currently include multiple lineages.

Description

Puff-throated Babblers are brown above, and white below with heavily brown streaks towards the breast and belly. They have a chestnut crown, long buff supercilium and dusky cheeks. The throat is white, and is sometimes puffed out giving it the English
English language
English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

 name. Puff-throated Babblers have strong legs, and spend a lot of time on the forest floor. They can often be seen creeping through undergrowth in search of their insect food, looking at first glance like a Song Thrush
Song Thrush
The Song Thrush is a thrush that breeds across much of Eurasia. It is also known in English dialects as throstle or mavis. It has brown upperparts and black-spotted cream or buff underparts and has three recognised subspecies...

. Some subspecies have streaks on the mantle while others, especially in Peninsular India, are unstreaked.

The widespread distribution with population variations has led to nearly thirty subspecies being described. The nominate population is found in peninsular India (excluding the Western Ghats). The population in the northern Eastern Ghats is paler and has been called as pallidum while a well marked dark form occurs in the southern Western Ghats which has been named granti (includes olivaceum). The western Himalayas population is punctatum (includes jonesi) and in the east is mandellii which has streaking on the back and nape apart from having call differences. In the east of India, south of the Brahmaputra River occurs chamelum while ripley is found in a small region in eastern Assam (Margherita). Further east in Manipur is vocale and pectorale in Arunachal Pradesh and northern Burma with stageri further south, followed by hilarum, victoriae and minus. Further east are found shanense, subochraceum, insularum, indistinctum, chtonium, elbeli, acrum, oreum, dusiti, vividum, ubonense, euroum, deignani, dilloni and smithi. Several others have been described and many populations are difficult to assign to subspecies. This is the type species for the genus Pellorneum and its generic placement is assured although other species currently included in the genus may be reassigned.

Distribution and habitat

This bird is a common resident breeder in the Himalayas
Himalayas
The Himalaya Range or Himalaya Mountains Sanskrit: Devanagari: हिमालय, literally "abode of snow"), usually called the Himalayas or Himalaya for short, is a mountain range in Asia, separating the Indian subcontinent from the Tibetan Plateau...

 and the forests of Asia. Like most babblers, it is not migratory
Bird migration
Bird migration is the regular seasonal journey undertaken by many species of birds. Bird movements include those made in response to changes in food availability, habitat or weather. Sometimes, journeys are not termed "true migration" because they are irregular or in only one direction...

, and has short rounded wings and a weak flight. Its habitat is scrub and bamboo
Bamboo
Bamboo is a group of perennial evergreens in the true grass family Poaceae, subfamily Bambusoideae, tribe Bambuseae. Giant bamboos are the largest members of the grass family....

thickets and forages by turning over leaves to find insects.

Behaviour and ecology

Puff-throated Babblers vocalize often. Their calls are a series of whistling notes ascending in scale. Some calls have been transcribed as he'll beat you, pret-ty-sweet. The calling can be persistent. The breeding season is mainly during the rainy season. They build a nest on the ground at the base of bush and is a dome of leaves and twigs with an entrance on the side. The opening usually pointing downhill when the nest is on slopy ground. The clutch varies from 2 to 5 eggs, with northern populations tending towards larger clutches. Parent birds run rodent-like in the undergrowth as they move in and out of the nest. Young birds fledge and leave the nest about 12 to 13 days after hatching.

External links

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