Phylloscopus schwarzi
Silhouette: Jiekun He · PhyloPic
In 3 days <5% in a week ~10%
Radde's warbler (Phylloscopus schwarzi) is a leaf warbler which breeds in Siberia. This warbler is strongly migratory and winters in Southeast Asia. The genus name Phylloscopus is from Ancient Greek phullon, "leaf", and skopos, "seeker" (from skopeo, "to watch"). The specific schwarzi commemorates German astronomer Ludwig Schwarz (1822–1894).
This is a warbler similar in size to a willow warbler. The adult has an unstreaked brown back and buff underparts. There is a very long prominent whitish supercilium, and the pointed bill is thicker than that of the similar dusky warbler. The legs are paler than those of the dusky warbler, and the feet look large, reflecting the more terrestrial lifestyle of this warbler. The sexes are identical, as with most warblers, but young birds are yellower below. The call is a soft chick.
Radde's warbler breeds in southern parts of Central and Eastern Siberia as far east as Korea and Manchuria. It is a migratory species and spends the winter in Bangladesh, Cambodia, Laos, Myanmar and Thailand. In its breeding range, Radde's warbler is found in open deciduous woodlands with some undergrowth and bushy woodland... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 3 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 4 | Cat Tien National Park | 🇻🇳 Vietnam |
Rare
Under 5% of wildlife watchers report a Radde's Warbler sighting in Wuhan on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 131st most-seen of the 143 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
May
In that month about 10% of wildlife watchers report a Radde's Warbler in Wuhan on a given day, against under 5% in June to April, the lowest months. That is one of Wuhan's wettest months, with about 160 mm of rain against 35 mm in December.
Between 2 and 5 am
Across all the parks we cover, that three-hour window holds the most Radde's Warbler sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
3rd of 8
Of the 8 cities where we can rate Radde's Warbler sightings, Wuhan ranks 3rd at under 5%. The best odds are in Đà Nẵng (Vietnam, about 10%) and Beijing (China, under 5%).
Same genus: Phylloscopus
The closest relatives of the Radde's Warbler that you can see in Wuhan (genus Phylloscopus, Leaf Warblers) are Pallas's Leaf-Warbler (about 20%), Yellow-browed Warbler (about 20%) and Dusky Warbler (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Radde's Warbler is recorded against all the birds logged in Wuhan (9 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.
