Phylloscopus claudiae
Silhouette: Jiekun He · PhyloPic
In 3 days ~50% in a week ~80%
Claudia's leaf warbler (Phylloscopus claudiae) is a leaf warbler found only in China. Its natural habitat is temperate forests. Most taxonomists previously considered it to be a subspecies of the Blyth's leaf warbler. Olsson, U., P. Alström, P.G.P. Ericson, and P. Sundberg. 2005. Non-monophyletic taxa and cryptic species - evidence from a molecular phylogeny of leaf-warblers (Phylloscopus, Aves). Molecular Phylogenetics and Evolution 36: 261–276.
Rheindt, F.E. 2006. Splits galore: the revolution in Asian leaf warbler systematics. BirdingASIA 5: 25–39. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Jiuzhaigou National Park | 🇨🇳 China | |
| 3 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 4 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 5 | Kaeng Krachan National Park | 🇹🇭 Thailand |
Possible
About 20% of wildlife watchers report a Claudia's Leaf-Warbler sighting in Khao Yai National Park on a given day, based on 558 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 62nd 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 Claudia's Leaf-Warbler in Khao Yai National Park on a given day, against under 5% in April–July and 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 2 and 5 am
Across all the parks we cover, that three-hour window holds the most Claudia's Leaf-Warbler sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Yes
Of the 5 parks where we can rate Claudia's Leaf-Warbler sightings, Khao Yai National Park has the highest daily chance: about 20%. Next come Jiuzhaigou National Park (China, about 20%) and Doi Inthanon National Park (Thailand, about 10%).
Same genus: Phylloscopus
The closest relatives of the Claudia's Leaf-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 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 Claudia's Leaf-Warbler is recorded against all the birds logged in Khao Yai National Park (558 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.
