Horornis brunnescens
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~30%
Hume's bush warbler (Horornis brunnescens) is a species of bush warbler (family Cettiidae). It was formerly included in the "Old World warbler" assemblage. It is found in the Himalayas of Nepal and India. It was formerly considered conspecific with the yellow-bellied bush warbler.
The name commemorates the British naturalist Allan Octavian Hume who worked in India. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Langtang National Park | 🇳🇵 Nepal | |
| 2 | Royal Manas National Park | 🇧🇹 Bhutan |
Rare
Under 5% of wildlife watchers report a Hume's Bush-Warbler sighting in Langtang National Park on a given day, based on 17 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 145th most-seen of the 225 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
December
In that month about 20% of wildlife watchers report a Hume's Bush-Warbler in Langtang National Park on a given day, against under 5% in March to October, the lowest months. That is one of Langtang National Park's driest months, with about 25 mm of rain against 390 mm in July.
Between 5 and 8 am
Across all the parks we cover, that three-hour window holds the most Hume's Bush-Warbler sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Hume's Bush-Warbler sightings, Langtang National Park has the highest daily chance: under 5%. Next come Royal Manas National Park (Bhutan, under 5%).
GBIF citizen-science records
It is estimated from how often the Hume's Bush-Warbler is recorded against all the birds logged in Langtang National Park (17 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
