Phylloscopus sindianus
Silhouette: Jiekun He · PhyloPic
In 3 days ~80% in a week >90%
It is an altitudinal migrant, moving to lower levels in winter. The nominate subspecies is similar to the Siberian chiffchaff, but with a finer darker bill, browner upperparts and buff flanks; its song is almost identical to the common chiffchaff, but the call is a weak psew. P. s. lorenzii is warmer and darker brown than the nominate race; it is sympatric with common chiffchaff in a small area in the Western Caucasus, but interbreeding occurs rarely, if ever. The mountain chiffchaff differs from tristis in vocalisations, external morphology and mtDNA sequences. Its two subspecies appear to be distinct vocally, and also show some difference in mtDNA sequences.
(German) Martens, Jochen (1982): Ringförmige Arealüberschneidung und Artbildung beim Zilpzalp, Phylloscopus collybita. Das lorenzii-Problem. Zeitschrift für Zoologische Systematik und Evolutionsforschung 20: 82–100. German) Martens, Jochen; Hänel, Sabine (1981): Gesangformen und Verwandtschaft der asiatischen Zilpzalpe Phylloscopus collybita... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Hemis National Park | 🇮🇳 India |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tehran | 🇮🇷 Iran |
Likely
About 40% of wildlife watchers report a Mountain Chiffchaff sighting in Hemis National Park on a given day, based on 63 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 9th most-seen of the 52 birds we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
May and June
In those months about 70% of wildlife watchers report a Mountain Chiffchaff in Hemis National Park on a given day, against about 10% in December, the lowest month. January has too few records to rate.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Mountain Chiffchaff sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Hemis National Park, in our data
Hemis National Park is the only park on Wallace's Line with enough records to rate Mountain Chiffchaff sightings: about 40% of wildlife watchers there report one on a given day.
Same genus: Phylloscopus
The closest relatives of the Mountain Chiffchaff that you can see in Hemis National Park (genus Phylloscopus, Leaf Warblers) are Sulphur-bellied Warbler (about 10%), Greenish Warbler (about 10%) and Tickell's Leaf Warbler (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mountain Chiffchaff is recorded against all the birds logged in Hemis National Park (63 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.
