Phylloscopus whistleri
The Whistler's Warbler (*Phylloscopus whistleri*) is a small, energetic leaf warbler, measuring approximately 10-12 cm (4-4.7 inches) in length and weighing a mere 6-9 grams. Its plumage is generally olive-brown on the upperparts, contrasting with whitish underparts, often washed with pale yellowish on the flanks and vent. Distinctive field marks include a dull yellowish supercilium, a dark eye-stripe, and occasionally a faint pale wing-bar, though these can be subtle. A key diagnostic featur...
Breeding primarily in high-altitude coniferous or mixed forests with dense undergrowth, typically above 2,500 meters. During winter, it descends to lower altitudes, inhabiting open deciduous forests, scrub, plantations, and gardens.
Primarily insectivorous, consuming a variety of small insects, their larvae (especially caterpillars), and spiders. It forages mainly by gleaning from foliage and twigs, occasionally performing aerial sallies.
This warbler is a highly active and restless diurnal species, constantly flitting through foliage. It employs a foraging strategy of actively gleaning small insects and spiders from leaves, twigs, and bark, often hovering briefly or making short sallies. During the breeding season, males establis...
The Whistler's Warbler breeds across the Himalayas, ranging from northern Pakistan eastward through northern India (including Uttarakhand, Himachal Pradesh, Jammu & Kashmir), Nepal, Bhutan, and extending into parts of southern China (Tibet, Yunnan). It typically nests at high altitudes, between 2...
Least Concern
- Named after Hugh Whistler, a pioneering British ornithologist who extensively documented bird life in India. - It is one of many 'leaf warbler' species in Asia, known for their often subtle plumage differences, making identification a true test of a birder's skills. - The species undertakes imp...