Seicercus poliogenys
Silhouette: Jiekun He · PhyloPic
In 3 days ~30% in a week ~50%
The grey-cheeked warbler (Phylloscopus poliogenys) is a species of leaf warbler (family Phylloscopidae). It was formerly included in the "Old World warbler" assemblage. It is native to Bangladesh, Bhutan, China, India, Laos, Myanmar, Nepal, Thailand, and Vietnam. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests. Its population size is unknown, but due to its large range the species does not approach the thresholds for Vulnerable under the range size criteria. The population trend appears to be stable, so also under the population size criteria the species does not approach Vulnerable.
The grey-cheeked warbler was previously placed in the genus Seicercus. A molecular phylogenetic study published in 2018 found that neither Phylloscopus nor Seicercus were monophyletic. In the subsequent reorganization the two genera were merged into Phylloscopus which has priority under the rules of the International Commission on Zoological Nomenclature. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Namdapha National Park | 🇮🇳 India | |
| 2 | Royal Manas National Park | 🇧🇹 Bhutan |
With luck
About 10% of wildlife watchers report a Gray-cheeked Warbler sighting in Royal Manas National Park on a given day, based on 106 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 148th most-seen of the 388 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
March
In that month about 20% of wildlife watchers report a Gray-cheeked Warbler in Royal Manas National Park on a given day, against under 5% in February, June and December, the lowest months. That is one of Royal Manas National Park's driest months, with about 120 mm of rain against 930 mm in July. August and September have too few records to rate.
Between 2 and 5 am
Across all the parks we cover, that three-hour window holds the most Gray-cheeked Warbler sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
2nd of 2
Of the 2 parks where we can rate Gray-cheeked Warbler sightings, Royal Manas National Park ranks 2nd at about 10%. The best odds are in Namdapha National Park (India, about 30%).
Same genus: Seicercus
The closest relatives of the Gray-cheeked Warbler that you can see in Royal Manas National Park (genus Seicercus) are Chestnut-crowned Warbler (about 10%) and Whistler's Warbler (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Gray-cheeked Warbler is recorded against all the birds logged in Royal Manas National Park (106 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.
