Unique birdsong leads experts to discover new species in Arunachal | Latest News India - Hindustan Times
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Unique birdsong leads experts to discover new species in Arunachal

Hindustan Times | ByNikita Mehta, New Delhi
Jan 21, 2016 09:04 AM IST

A birdsong has led a team of scientists to India’s first new bird species in a decade and the fourth since 1947. The bird, which has been named the Himalayan Forest Thrush, has been described from northeastern India and adjacent parts of China by a team of scientists from India, Sweden, China, the US and Russia.

A birdsong has led a team of scientists to India’s first new bird species in a decade and the fourth since 1947. The bird, which has been named the Himalayan Forest Thrush, has been described from northeastern India and adjacent parts of China by a team of scientists from India, Sweden, China, the US and Russia.

The Himalayan Forest Thrush is the fourth new species of bird to be discovered in independent India.(Photo courtesy: Sanctuary Asia Twitter handle)
The Himalayan Forest Thrush is the fourth new species of bird to be discovered in independent India.(Photo courtesy: Sanctuary Asia Twitter handle)

Per Alstrom from the department of animal ecology in Sweden-based Uppsala University and Shashank Dalvi from the Wildlife Biology and Conservation WCS-India Programme at the Bengaluru-based National Centre of Biological Sciences, discovered the species when they were studying birds at different elevations in the mountains of western Arunachal Pradesh.

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It was there that they first noticed that two birds found at different elevations that were seemingly of the same species, called the Plain-backed Thrush, had two different song types.

“The one below the tree line had a beautiful song and that intrigued us. There were also physical differences such as a longer bill, shorter wings and shorter legs, but we noticed them much later. The first clue was the song,” said Dalvi. What was thought to be Plain-backed Thrush in the coniferous and mixed forest had a melodious song, but the ones found in the same area but on rocky habitats above the tree-line had a “much harsher, scratchier, unmusical song”.

The initial observation was followed by recordings of the bird from different places along with DNA samples.

Studies of specimens from 15 museums in seven countries revealed consistent differences in plumage and structure between birds from these two populations. It was found that the species breeding in the forests of the eastern Himalayas had no scientific name, and so it was named Zoothera salimalii after the late Dr Salim Ali, a prominent ornithologist who made significant contributions to ornithology in India.

Ironically, the Himalayan Forest Thrush is a very common bird in these areas. “It was hidden in plain sight. It was so similar to the Plain-backed Thrush that unless you hear the song, it is hard to make out the difference,” said Dalvi.

The study describing the new species appeared in Avian Research, an open-access peer reviewed journal on Wednesday.

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