>> GENERAL >>>>>
– small passerine, smaller than a sparrow
– diurnal migrant, probably nocturnal too
– migrates singly, in small to medium (mixed) flocks
>> VISUAL ID >>>>>
Pallas’s Leaf Warbler Phylloscopus proregulus
BIF1985, 30/05/2014, Dornod Aimag, Mongolia, Mathias Putze
– long and broad bicoloured supercilium and dark eye stripe
– distict pale crown-stripe
– whitish-yellow rump patch (missing in Yellow-browed and Hume’s Leaf Warbler)
– double wing bar, in spring pale tertial fringes usually are abraded
>> ACOUSTIC ID >>>>>
– is supposed to be non-vocal on migration – no reliable evidence about flight calls
>> COMPARISON SPECIES >>>>>
Yellow-browed Warbler (v)
Hume’s Leaf Warbler (v)
Firecrest (v)
#passerine #songbird #warbler
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