Phylloscopus plumbeitarsus
Silhouette: Jiekun He · PhyloPic
In 3 days ~60% in a week ~90%
The two-barred warbler (Phylloscopus plumbeitarsus) is a bird of the leaf warbler family (Phylloscopidae). The species was first described by Robert Swinhoe in 1861. It was formerly included in the "Old World warbler" assemblage. It is closely related to the greenish warbler, to which it was formerly considered conspecific.
It is found in northern Mongolia, Manchuria and southern Siberia. They are a migratory species. Before the autumn migration, both adults and juveniles molt. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 3 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 4 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 5 | Gobi Gurvansaikhan National Park | 🇲🇳 Mongolia | |
| 6 | Khao Luang National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Hanoi | 🇻🇳 Vietnam | |
| 2 | Beijing | 🇨🇳 China | |
| 3 | Hong Kong | 🇨🇳 China | |
| 4 | Tuen Mun | 🇨🇳 China | |
| 5 | Bangkok | 🇹🇭 Thailand | |
| 6 | Phnom Penh | 🇰🇭 Cambodia | |
| 7 | Ho Chi Minh City | 🇻🇳 Vietnam | |
| 8 | Guangzhou | 🇨🇳 China | |
| 9 | Taipei | 🇹🇼 Taiwan | |
| 10 | Singapore | 🇸🇬 Singapore |
Possible
About 20% of wildlife watchers report a Two-barred Warbler sighting in Khao Yai National Park on a given day, based on 686 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 50th most-seen of the 278 birds we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
December and January
In those months about 40% of wildlife watchers report a Two-barred Warbler in Khao Yai National Park on a given day, against under 5% in May and June, the lowest months. Those are among Khao Yai National Park's driest months, with about 20 mm of rain a month against 330 mm in September.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Two-barred 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.
Yes
Of the 6 parks where we can rate Two-barred Warbler sightings, Khao Yai National Park has the highest daily chance: about 20%. Next come Kaeng Krachan National Park (Thailand, about 20%) and Cat Tien National Park (Vietnam, about 10%).
Same genus: Phylloscopus
The closest relatives of the Two-barred Warbler that you can see in Khao Yai National Park (genus Phylloscopus, Leaf Warblers) are Yellow-browed Warbler (about 50%), Claudia's Leaf-Warbler (about 20%) and Sulphur-breasted Warbler (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Two-barred Warbler is recorded against all the birds logged in Khao Yai National Park (686 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.
