Phylloscopus griseolus
Silhouette: Jiekun He · PhyloPic
In 3 days <5% in a week ~10%
The sulphur-bellied warbler (Phylloscopus griseolus) is a species of leaf-warbler found in the Palearctic region (Afghanistan, Kazakhstan, Kyrgyzstan, Mongolia, Russian Federation [Central Asian Russia], Tajikistan and Turkmenistan). It was earlier also known by the name of olivaceous leaf-warbler.
Like other leaf-warblers, it gleans insects from small branches and leaves. It is found in rocky hill and scrub forest habitats. The species is found in small groups and has a tendency to forage low in the vegetation, sometimes even hopping on the ground. It has a single note cheep call. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Hemis National Park | 🇮🇳 India | |
| 2 | Gobi Gurvansaikhan National Park | 🇲🇳 Mongolia | |
| 3 | Satpura National Park | 🇮🇳 India | |
| 4 | Bandhavgarh National Park | 🇮🇳 India | |
| 5 | Ranthambore National Park | 🇮🇳 India | |
| 6 | Keoladeo National Park | 🇮🇳 India | |
| 7 | Kanha National Park | 🇮🇳 India | |
| 8 | Jim Corbett National Park | 🇮🇳 India |
Rare
Under 5% of wildlife watchers report a Sulphur-bellied Warbler sighting in Keoladeo National Park on a given day, based on 25 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 211th most-seen of the 278 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Sulphur-bellied Warbler in Keoladeo National Park on a given day, so our monthly data shows no clear season.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Sulphur-bellied 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.
6th of 8
Of the 8 parks where we can rate Sulphur-bellied Warbler sightings, Keoladeo National Park ranks 6th at under 5%. The best odds are in Hemis National Park (India, about 10%), Gobi Gurvansaikhan National Park (Mongolia, about 10%) and Satpura National Park (India, under 5%).
Same genus: Phylloscopus
The closest relatives of the Sulphur-bellied Warbler that you can see in Keoladeo National Park (genus Phylloscopus, Leaf Warblers) are Common Chiffchaff (about 30%), Hume's Warbler (about 30%) and Greenish Warbler (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sulphur-bellied Warbler is recorded against all the birds logged in Keoladeo National Park (25 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.
