Phylloscopus sindianus
Silhouette: Jiekun He · PhyloPic
In 3 days ~20% in a week ~50%
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 |
With luck
About 10% of wildlife watchers report a Mountain Chiffchaff sighting in Tehran on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 42nd most-seen of the 113 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
March
In that month about 20% of wildlife watchers report a Mountain Chiffchaff in Tehran on a given day, against under 5% in February and April–November, the lowest months.
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 Tehran, in our data
Tehran is the only city on Wallace's Line with enough records to rate Mountain Chiffchaff sightings: about 10% 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 Tehran (genus Phylloscopus, Leaf Warblers) are Common Chiffchaff (about 60%) and Willow Warbler (about 20%), 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 Tehran (5 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.
