Phylloscopus tenellipes
Silhouette: Jiekun He · PhyloPic
In 3 days ~10% in a week ~20%
The pale-legged leaf warbler (Phylloscopus tenellipes) is a species of Old World warbler in the family Phylloscopidae. The species was first described by Robert Swinhoe in 1860. It is found in Manchuria; it winters in Southeast Asia. Its natural habitat is temperate forests.
It is 12 cm in length with brownish upperparts and a contrasting greyish-brown crown and nape. The whitish supercilium contrasts strongly, not reaching the forehead but extending well behind the eyes. Its eyeline is dark brown and wider behind the eye. Cheeks mottled pale brown and throat whitish. White undertail coverts contrast with paler olive-brown rump and uppertail coverts, lacks greenish tinge. Breast and belly whitish, washed pale brown.
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| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 2 | Khao Yai National Park | 🇹🇭 Thailand | |
| 3 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 4 | Khao Sok National Park | 🇹🇭 Thailand | |
| 5 | Khao Luang National Park | 🇹🇭 Thailand | |
| 6 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 7 | Doi Inthanon National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Xiuying District | 🇨🇳 China | |
| 2 | Zhuhai [Macau] | 🇨🇳 China | |
| 3 | Hangzhou | 🇨🇳 China | |
| 4 | Hong Kong | 🇨🇳 China | |
| 5 | Hanoi | 🇻🇳 Vietnam | |
| 6 | Busan | 🇰🇷 South Korea | |
| 7 | Suzhou | 🇨🇳 China | |
| 8 | Nanjing | 🇨🇳 China | |
| 9 | Guangzhou | 🇨🇳 China | |
| 10 | Bangkok | 🇹🇭 Thailand |
Rare
Under 5% of wildlife watchers report a Pale-legged Leaf-Warbler sighting in Hanoi on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 78th most-seen of the 97 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
September
In that month about 20% of wildlife watchers report a Pale-legged Leaf-Warbler in Hanoi on a given day, against under 5% in May–August and October–March, the lowest months. That is one of Hanoi's wettest months, with about 220 mm of rain against 20 mm in February.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Pale-legged Leaf-Warbler sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 15
Of the 15 cities where we can rate Pale-legged Leaf-Warbler sightings, Hanoi ranks 5th at under 5%. The best odds are in Xiuying District (China, about 10%), Zhuhai [Macau] (China, about 10%) and Hangzhou (China, under 5%).
Same genus: Phylloscopus
The closest relatives of the Pale-legged Leaf-Warbler that you can see in Hanoi (genus Phylloscopus, Leaf Warblers) are Yellow-browed Warbler (about 60%), Dusky Warbler (about 30%) and Eastern Crowned-Warbler (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Pale-legged Leaf-Warbler is recorded against all the birds logged in Hanoi (7 verified sightings), 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.
