Nests are found among roots under the overhanging lip of an eroded bank or other similar place.

A molecular phylogenetic study published in 2018 found that neither Phylloscopus nor Seicercus were monophyletic.

[3] In the subsequent reorganization the two genera were merged into Phylloscopus which has priority under the rules of the International Commission on Zoological Nomenclature.

[4] The yellow-breasted warbler has a large range and a steady population size.

From the perspective of conservation biology, this species is classified as one of least concern, meaning it does not appear to be threatened or vulnerable to extinction at the present time.