Phylloscopus reguloides
Silhouette: Margot Michaud · PhyloPic
In 3 days ~50% in a week ~80%
Blyth's leaf warbler (Phylloscopus reguloides) is a species of leaf warbler (family Phylloscopidae). It was formerly included in the "Old World warbler" assemblage. It is found mainly in Southeast Asia, southern China and along the Himalayas till northern Pakistan. Its natural habitat is subtropical or tropical moist montane forests.
This bird was named after the English zoologist Edward Blyth. In regard to its birdsong complexity, which takes into account the number of distinct notes, Blyth leaf warbler's high complexity is a consequence of increased variation between song types. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 2 | Langtang National Park | 🇳🇵 Nepal | |
| 3 | Namdapha National Park | 🇮🇳 India | |
| 4 | Royal Manas National Park | 🇧🇹 Bhutan | |
| 5 | Manas National Park | 🇮🇳 India | |
| 6 | Kaziranga National Park | 🇮🇳 India | |
| 7 | Chitwan National Park | 🇳🇵 Nepal | |
| 8 | Jim Corbett National Park | 🇮🇳 India |
Possible
About 20% of wildlife watchers report a Blyth's Leaf-Warbler sighting in Langtang National Park on a given day, based on 87 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 51st most-seen of the 225 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
July
In that month about 60% of wildlife watchers report a Blyth's Leaf-Warbler in Langtang National Park on a given day, against under 5% in November, the lowest month. That is one of Langtang National Park's wettest months, with about 390 mm of rain against 10 mm in November.
Between 3 and 6 am
Across all the parks we cover, that three-hour window holds the most Blyth's Leaf-Warbler sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
2nd of 8
Of the 8 parks where we can rate Blyth's Leaf-Warbler sightings, Langtang National Park ranks 2nd at about 20%. The best odds are in Doi Inthanon National Park (Thailand, about 30%).
Same genus: Phylloscopus
The closest relatives of the Blyth's Leaf-Warbler that you can see in Langtang National Park (genus Phylloscopus, Leaf Warblers) are Grey-hooded Warbler (about 40%), Buff-barred Warbler (about 30%) and Ashy-throated Warbler (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Blyth's Leaf-Warbler is recorded against all the birds logged in Langtang National Park (87 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.
