Detected and recorded in the limestone mountains of Vietnam and Laos, these birds are similar to yellow-breasted warbler species Phylloscopus ricketti morphology but the smaller, more rounded wings. Discovered new species of snake in Vietnam

Shot birds discovered this warbler named limestone, the scientific name Phylloscopus calciatilis. Species resembles that of birds yellow breasted warbler Phylloscopus ricketti morphology but the smaller, more rounded wings.

Initially, birds were identified as yellow-breasted warbler species, but do people find this species breeding in the area are familiar about 1,000 km. Afterwards, the scientists found that they also whistle whistle of different species of yellow-breasted warbler. These are the initial basis for conducting further research on this species.

Injecting limestone - each species identified as species of yellow-breasted warbler. Photo: Ulf Johansson.

English singing and the voice of this species have been analyzed. Based on the analysis of chromosomes and DNA, the scientists found, a new species of bird shot is a close relationship with species of warbler and yellow-breasted warbler đít gold.

Main experts of the organization BirdLife and the Institute of Ecology and Biological Resources has taken the evidence that birds settle and breed in the limestone central Vietnam.

“Limestone area in Laos and Vietnam are worth saving because it is a center where the level of high biodiversity of plants, animals and invertebrates mammals. However, only recently the new people interested in the diversity of birds in the area, Jonathan Eames, chief representative organization BirdLife International in Indochina said.

There were four birds were found in this limestone area. One of the species Babbler Ebony Stachyris herberti experts of the organization Birdlife discovered back in 1994 after more than 64 years missing. Babbler species are also found in Ebony right areas where limestone warbler species have been discovered.

This is a region of vast limestone mountain, now in the National Park Hin Namno in Laos and Phong Nha - Ke Bang in Vietnam. Although birds are not threatened but held BirdLife will evaluate conservation status of their species, from which additional data for the IUCN Red List species.