Pallas’s Leaf Warbler Phylloscopus proregulus

– small passerine, smaller than a sparrow
– diurnal migrant, probably nocturnal too
– migrates singly, in small to medium (mixed) flocks


Pallas’s Leaf Warbler Phylloscopus proregulus
BIF1985, 30/05/2014, Dornod Aimag, Mongolia, Mathias Putze
long bicoloured supercilium above long eye stripe; clear pale crown-stripe; whitish-yellow rump patch (missing in Yellow-browed and Hume’s Leaf Warbler); double wing bar; in spring pale tertial fringes are mostly abraded

comparison species:
Yellow-browed Warbler
Hume’s Leaf Warbler
Firecrest

voice: is supposed to be non-vocal on migration – no reliable evidence about flight calls

#passerine #songbird #warbler

#ornithology #birdmigration #birdID #birdguide #birding #birdwatching #birdsound #westernpalearctic #europe #vismig #flightcalls #middleeast #northernafrica #workinprogress