Phylloscopus xanthodryas
Silhouette: Jiekun He · PhyloPic
In 3 days <5%
The Japanese leaf warbler (Phylloscopus xanthodryas) is a leaf warbler (family Phylloscopidae). The species was first described by Robert Swinhoe in 1863. It was formerly included in the "Old World warbler" assemblage. It is closely related to the Arctic warbler and the Kamchatka leaf warbler, to which it was formerly considered conspecific.
It is found throughout Japan, except on Hokkaido; it winters to Southeast Asia. The Japanese Leaf-Warbler is sized between 12–13 cm in length. They typically have darker green upper body feathers, with an under body (or belly) with lighter green feathers. They have a very short and black (with a hint of yellow) beak, as well as extremely small legs that vary from pale yellow to orange-brown. The bird has a clear yellowish-white eyebrow stripe above the bird's dark eyes. Adults are bright olive-green (with a white wingbar and greenish tail). Both sexes look alike. Juveniles are roughly similar, yet duller in color (more grey-brown).
Monotypic, only existing form of this species of bird and there are no further subdivisions. This species lives in mixed and deciduous forests, as well as in coniferous... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nikko National Park | 🇯🇵 Japan |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Japanese Leaf Warbler sighting in Osaka on a given day, based on 23 verified sightings from GBIF citizen-science data. It is the 137th most-seen of the 180 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Japanese Leaf Warbler in Osaka on a given day, so our monthly data shows no clear season.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Japanese Leaf Warbler sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 4 cities where we can rate Japanese Leaf Warbler sightings, Osaka has the highest daily chance: under 5%. Next come Kaohsiung (Taiwan, under 5%) and Nagoya (Japan, under 5%).
GBIF citizen-science records
It is estimated from how often the Japanese Leaf Warbler is recorded against all the birds logged in Osaka (23 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.
