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Two new bird species discovered in Borneo

Ornithologists have discovered two new species of bird. This is a Flycatcher of the genus Cyornis and a white eye of the genus Zosterops, in the southeast Borneo, in Indonesia.

The researchers say that the two new species Cyornis and Zosterops inhabit the Meratus Mountains, in southeast Borneo. According to them, they are probably retained in this restricted space.

What are the new Cyornis species?

Cyornis is a member of the family Muscicapidae, flycatchers of the Afro-Eurasian part of the world. Currently, 25 species of this genus are officially recognized.

This genus of passerine bird is found throughout the southern part of Asia, in the southeast of the Asian continent, in the Philippines and Indonesia.

Birds of the genus Cyorinis mostly have a different plumage according to their sex. Thus, the males are composed of blue on their upper part and white or orange and white on their lower part. Nevertheless, some species are monomorphic and devoid of bright colors.

There is an intimate relationship between the new species Cyornis and the Blue Dayak Flycatcher (Cyornis Montanus). Their morphology distinguishes them all the same. Indeed, the new species shows a much less dark blue above and it highlights less white and red color on the underparts.

How to characterize the new Zosterops species?

The Zosteropes are a genus of passerine birds recognizable by the white membrane around their eyes family characteristic Zosteropidae. Moreover, the scientific name Zesterops means “contoured eye”. The genus includes more than a hundred species distributed in the Australasia, Indomalayan and Afrotropical territories.

These birds are incessant colonizers of islands, explaining the diversity of white-eye species and the rate at which these birds are evolving.

The new species White-eye is very similar to Zosterops chloris, but its olive color on the upper parts and its darker lower part distinguish them morphologically.

“Although both species are relatively common within the restricted area of ​​the Meratus Mountains, continued habitat alteration and the imminent threat of poaching could be putting them at risk. Therefore, we recommend IUCN Red List status ‘Vulnerable’ for the new species, based on criteria B1 and B2. »

SOURCE: SCI-NEWS

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