Pallas's Grasshopper Warbler Helopsaltes certhiola
Estimated average number of individuals by week based on eBird data, Jul 2012 to Jun 2022
Peak week Jan 01-Jan 07
Early date 01 Sep 2007
Late date 29 May 1982
A fairly common inhabitant of dense reedbeds, but more often heard than seen. Most frequently observed from Oct to Apr.