Phylloscopus ricketti
Silhouette: Jiekun He · PhyloPic
In 3 days ~50% in a week ~80%
The sulphur-breasted warbler (Phylloscopus ricketti) is a species of Old World warbler in the family Phylloscopidae. It breeds in China; it winters to Laos, Thailand and Cambodia. Its natural habitats are temperate forests and subtropical or tropical moist lowland forests. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 3 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 4 | Cuc Phuong National Park | 🇻🇳 Vietnam |
Possible
About 20% of wildlife watchers report a Sulphur-breasted Warbler sighting in Khao Yai National Park on a given day, based on 444 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 68th most-seen of the 278 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.
December
In that month about 40% of wildlife watchers report a Sulphur-breasted Warbler in Khao Yai National Park on a given day, against under 5% in April to September, the lowest months. That is one of Khao Yai National Park's driest months, with about 15 mm of rain against 330 mm in September.
Between 4 and 7 am
Across all the parks we cover, that three-hour window holds the most Sulphur-breasted 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.
Yes
Of the 4 parks where we can rate Sulphur-breasted Warbler sightings, Khao Yai National Park has the highest daily chance: about 20%. Next come Kaeng Krachan National Park (Thailand, about 10%) and Doi Inthanon National Park (Thailand, under 5%).
Same genus: Phylloscopus
The closest relatives of the Sulphur-breasted Warbler that you can see in Khao Yai National Park (genus Phylloscopus, Leaf Warblers) are Yellow-browed Warbler (about 50%), Two-barred Warbler (about 20%) and Claudia's Leaf-Warbler (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sulphur-breasted Warbler is recorded against all the birds logged in Khao Yai National Park (444 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.
