Birdsong field guide
Hume's Bush Warbler
Horornis brunnescens
A small, elusive passerine of the Himalayan highlands, recognized for its drab plumage and skulking habits within dense montane undergrowth.
What it sounds like
A high-pitched, insect-like series of thin notes that gradually accelerate and rise in frequency.
Field notes
- Formerly considered a subspecies of the Yellow-bellied Bush Warbler, it was elevated to species status based on significant vocal differences.
- It is a high-altitude specialist, typically breeding in subalpine zones between 3,000 and 4,000 meters above sea level.
- The species performs altitudinal migration, descending to lower Himalayan foothills and valleys during the harsh winter months.
- It is characterized by a relatively thin, pointed bill and a prominent buff-colored supercilium that extends behind the eye.
- Like many bush warblers, it is more often heard than seen due to its preference for impenetrable bamboo and rhododendron thickets.
Habitat
Dense bamboo stands, rhododendron scrub, and thick subalpine undergrowth.
Range
The Himalayan range across northern India, Nepal, Bhutan, and southern Tibet.
Similar & commonly confused birds
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