Phylloscopus hainanus
The Hainan Leaf Warbler (*Phylloscopus hainanus*) is a charmingly diminutive songbird, strictly endemic to the montane forests of Hainan Island, China. Averaging about 10-11 cm in length and weighing a mere 5-7 grams, its appearance is typical of many Old World warblers, featuring olive-green upperparts, a brighter yellowish-green rump, and contrasting yellowish underparts. A prominent, bright yellow supercilium extends from its bill base to behind the eye, sharply defined above by a dark lat...
This species primarily inhabits montane evergreen broadleaf forests and mixed deciduous-evergreen forests, typically at elevations between 600 and 1500 meters, occasionally descending to 300 meters or ascending to 1800 meters.
Primarily insectivorous, the Hainan Leaf Warbler feeds on small insects such as beetles, caterpillars, flies, and their larvae, as well as spiders, typically gleaned from foliage or caught in short aerial sallies.
Hainan Leaf Warblers are highly active, diurnal insectivores, constantly flitting through the canopy and subcanopy foliage in search of prey. Their foraging strategy predominantly involves gleaning insects from leaves and twigs, but they are also observed sallying out to catch flying insects in m...
The Hainan Leaf Warbler is exclusively found on Hainan Island, located off the southern coast of China. Its entire global distribution is restricted to the central montane regions of this island, where it is a year-round resident. There are no known breeding or wintering ranges outside of Hainan,...
Vulnerable
- The Hainan Leaf Warbler was only formally described to science in 1993, making it one of the more recently recognized avian species. - It is a strict endemic, meaning it is found naturally nowhere else in the world except Hainan Island, China. - Despite its subtle plumage, its distinctive, high...