Himalayan shrike-babbler | |
---|---|
Male in Paharpani, Uttarakhand, India | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Vireonidae |
Genus: | Pteruthius |
Species: | |
Subspecies: | P. a. ripleyi |
Trinomial name | |
Pteruthius aeralatus ripleyi Biswas, 1960 | |
A rough distribution of the taxa within the species complex |
The Himalayan shrike-babbler (Pteruthius aeralatus ripleyi) is a bird subspecies found in the western Himalayas that belongs to the shrike-babbler group. The genus was once considered to be an aberrant Old World babbler and placed in the family Timaliidae until molecular phylogenetic studies showed them to be closely related to the vireos of the New World, leading to their addition in the family Vireonidae. Males and females have distinctive plumages, with the males being all black about with a cinnamon-rufous tertial patch and a distinctive white stripe running from behind the eye. The underside is whitish with some pinkish buff on the flanks. Females have a greyish head, lack the white stripe and have the upperparts and wings with greens, yellow and chestnut. The subspecies is part of a cryptic species complex that was earlier considered as one species, white-browed shrike-babbler (P. flaviscapis in the broad sense) with several subspecies.
Adult males have a black head and a greyish back. A white superciliary stripe begins just above and behind the eye, extending back down the sides of the nape. The throat and underside are whitish. The inner edges and tips of the primaries are white, the tertiaries (the three inner secondaries [1] ) are uniformly [2] orange-chestnut, unlike dark chestnut in P. a. validirostris. [3] The flanks have a hint of pale pink and grey. The grey on the back is lighter than the shade in validirostris. [4] The bill is black and hooked at the tip. The adult female is olive brown above with the wing coverts edged grey. The secondaries are edged with olive green and the outer three primaries are tipped in white on the inner edge. The tertiaries are uniformly chestnut. Both males and females are paler than P. a. validirostris. [3] The tail is black. The outer tail feathers are olive green and tipped in yellow with the inner webs black. The central tail feathers are olive green with a black tip. The underside is whitish buff as in the male but washed with grey from the middle of the abdomen to the vent. [5]
The taxonomic history of this subspecies is complex. It was originally described by Nicholas Aylward Vigors in 1831 who described the bird based on a specimen from Murree in Pakistan. He called it Lanius erythropterus [6] and the subspecies was later moved out of the genus Lanius used only for true shrikes and placed in the genus Pteruthius as P. erythropterus. In 1951, Koelz described a new subspecies from Nagaland under the name of Pteruthius erythropterus validirostris. [4] In 1960, Biswamoy Biswas noted that the name Lanius erythropterus was "preoccupied" or clashing with an earlier name used by Shaw in 1809 for a different species and he therefore suggested that the western Himalayan species should be renamed as a subspecies ripleyi after elevating Koelz's name for the eastern Himalayan form to the rank of a species. [7] Temminck described a similar and related species from Java in 1835 as Allotrius flaviscapis and this too was moved to the genus Pteruthius. The subspecies validirostris, which then included ripleyi, along with many other forms in the region were lumped as subspecies of Pteruthius flaviscapis by Ernst Mayr and R.A. Paynter in their taxonomic treatment in 1964. [8] This was followed by most regional works such as the Handbook of the Birds of India and Pakistan by Salim Ali and Dillon S. Ripley. [9] In 2008, a study of the Pteruthius group found that the relationships within the groups here were more complex than earlier thought and one of the findings was that the subspecies validirostris of the eastern Himalayas was more closely related to the forms found further to the east in Southeast Asia and far more distant to the form in the western Himalayas. This led to the elevation of the western form as Pteruthius ripleyi with validirostris being made a subspecies of Pteruthius aeralatus Blyth's shrike-babbler. [3] [10]
The subspecies is found in the western Himalayas from northern Pakistan and extending east through India into central Nepal and possibly further east. The eastern limits of the species are unclear but some evidence based on song differences suggests that they might occur as far east as Arunachal Pradesh. This might be negated if it is found that song variations exist within the eastern form Pteruthius aeralatus validirostris of Blyth's shrike-babbler. [10]
Himalayan shrike-babblers are strictly arboreal and are seen foraging for insects mainly in the upper canopy. During the breeding season they are found in pairs but at other times several birds may be found, often in mixed-species foraging flocks. They also feed on berries, hopping along branches and sometimes hanging like a nuthatch. They sometimes sit still and will call often. The call being a series of loud kewkew kwekew repeated three or four times and the song from February to June transcribed as cha-chew, cha-ca-chip. The nest is a hammock, like that of an oriole, built in a fork towards the tip of a branch high in the canopy of a tree. The clutch varies from two to four eggs which are pinkish white and speckled in purple brown, the spots merging to form a ring towards the broad end. [9]
The great grey shrike is a large and predatory songbird species in the shrike family (Laniidae). It forms a superspecies with its parapatric southern relatives, the Iberian grey shrike, the Chinese grey shrike and the American loggerhead shrike. Males and females are similar in plumage, pearly grey above with a black eye-mask and white underparts.
The long-tailed shrike or rufous-backed shrike is a member of the bird family Laniidae, the shrikes. They are found widely distributed across Asia and there are variations in plumage across the range. The species ranges across much of Asia, both on the mainland and the eastern archipelagos. The eastern or Himalayan subspecies, L. s. tricolor, is sometimes called the black-headed shrike. Although there are considerable differences in plumage among the subspecies, they all have a long and narrow black tail, have a black mask and forehead, rufous rump and flanks and a small white patch on the shoulder. It is considered to form a superspecies with the grey-backed shrike which breeds on the Tibetan Plateau.
The brown shrike is a bird in the shrike family that is found mainly in Asia. It is closely related to the red-backed shrike and isabelline shrike. The genus name, Lanius, is derived from the Latin word for "butcher", and some shrikes are also known as "butcher birds" because of their feeding habits. The specific cristatus is Latin for "crested", used in a broader sense than in English. The common English name "shrike" is from Old English scríc, "shriek", referring to the shrill call.
The dark-fronted babbler is an Old World babbler found in the Western Ghats of India and the forests of Sri Lanka. They are small chestnut brown birds with a dark black cap, a whitish underside and pale yellow iris. They forage in flocks in the undergrowth of forests constantly making calls and uttering alarm calls when disturbed.
The bar-winged flycatcher-shrike is a small passerine bird usually placed in the Vangidae. It is found in the forests of tropical southern Asia from the Himalayas and hills of southern India to Indonesia. Mainly insectivorous it is found hunting in the mid-canopy of forests, often joining mixed-species foraging flocks. They perch upright and have a distinctive pattern of black and white, males being more shiny black than the females. In some populations the colour of the back is brownish while others have a dark wash on the underside.
Biswamoy Biswas was an Indian ornithologist who was born in Calcutta, the son of a professor of geology. In 1947, he was awarded a three-year fellowship by Sunderlal Hora, then director of the Zoological Survey of India (ZSI). It enabled him to study at the British Museum, at the Berlin Zoological Museum under Erwin Stresemann and also at the American Museum of Natural History under Ernst Mayr.
The grey-backed shrike is a bird in the family Laniidae inhabiting South-east Asia.
The mountain shrike or grey-capped shrike, is a species of bird in the family Laniidae. It is endemic to the Philippines.
The Himalayan rubythroat is a species of passerine bird in the family Muscicapidae. It is closely related to the Siberian rubythroat which however lacks the distinctive white tail-tips and white tail bases. It was also previously considered conspecific with the Chinese rubythroat, together called the white-tailed rubythroat. It is found along the Himalayan ranges from Afghanistan to Myanmar. Three subspecies are recognized across its wide range.
The pied shrike-babbler is a bird species traditionally considered an aberrant Old World babbler and placed in the family Timaliidae. But as it seems, it belongs to an Asian offshoot of the American vireos and may well belong in the Vireonidae. Indeed, since long it was noted that their habits resemble those of vireos, but this was believed to be the result of convergent evolution.
The shrike-babblers are a group of small birds in the genus Pteruthius. They are native to the Indomalayan realm, and were traditionally placed in the family Timaliidae before molecular phylogenetic studies in 2007 found that they were best considered as belonging to the family Vireonidae which was then thought to be restricted to the New World. They were traditionally classified into five species with several subspecies but changes in the status of these species on the basis of the phylogenetic species concept suggest more forms in a cryptic species complex. Most species are found in montane forests, with some species descending down to lower altitudes during the winter.
The clicking shrike-babbler is a species of bird in the family Vireonidae. It is found from Assam, India, eastern Myanmar to southern China, and southern Vietnam. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests. It used to be considered a subspecies of the chestnut-fronted shrike-babbler.
The trilling shrike-babbler is a species of bird in the family Vireonidae. It is endemic to the island of Java. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests. It used to be considered the nominate subspecies of the chestnut-fronted shrike-babbler.
The white-browed shrike-babbler is a bird species found in the eastern Himalayas and Southeast Asia from northern Burma to southern Cambodia. Like others in the genus it is found in montane forests. Males and females have different plumages and variations occur through its range with several populations being treated as subspecies. It is part of a cryptic species complex and was earlier lumped as a subspecies of the white-browed shrike-babbler. Clements lumps this bird into the white-browed shrike-babbler.
The Dalat shrike-babbler is a bird subspecies traditionally considered an aberrant Old World babbler and placed in the family Timaliidae. But as it seems, it belongs to an Asian offshoot of the American vireos and may well belong in the Vireonidae. Indeed, since long it was noted that their habits resemble those of vireos, but this was believed to be the result of convergent evolution.