Phylloscopus plumbeitarsus
Silhouette: Jiekun He · PhyloPic
In 3 days ~20% in a week ~50%
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 |
With luck
About 10% of wildlife watchers report a Two-barred Warbler sighting in Cat Tien National Park on a given day, based on 151 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 127th most-seen of the 244 birds we can rate there. Over three days the chance rises to about 20%, 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 Two-barred Warbler in Cat Tien National Park on a given day, against under 5% in May to September, the lowest months. That is one of Cat Tien National Park's driest months, with about 30 mm of rain against 490 mm in July.
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.
3rd of 6
Of the 6 parks where we can rate Two-barred Warbler sightings, Cat Tien National Park ranks 3rd at about 10%. The best odds are in Khao Yai National Park (Thailand, about 20%) and Kaeng Krachan National Park (Thailand, about 20%).
Same genus: Phylloscopus
The closest relatives of the Two-barred Warbler that you can see in Cat Tien National Park (genus Phylloscopus, Leaf Warblers) are Yellow-browed Warbler (about 20%) and Pale-legged Leaf-Warbler (about 10%), 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 Cat Tien National Park (151 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.
