Siberian Chiffchaff

well I think this bird qualifies -- late afternoon Sunday October 11th Donna Nook, Lincs; this bird was feeding in a small clump of wild rose on the sunny side of the dunes so images taken tended to be warm but I have compensated a little in conversions -  looking at the key papers, British Birds June 2010 p 320 -337; the Status in Britain of Siberian Chiffchaff; Birding World 24 (1) Siberian Chiffchaff - in from the cold Anthony McGeehan, Dutch Birding 31 (2) and Birding Frontiers Challenge Series Autumn -- this bird has the following good features

Beige, sandy-buff, cafe au lait crown and mantle

Contrasting black alula

black legs with yellow soles only just visible on perched bird

supercilia tinged with buff

a darker washed line over the supercilia on the crown sides

ear coverts warm buff - described as a nicotine coloured hotspot on the ear coverts by AMcG

tinge of green in fringes of flight feathers, greater coverts and tail feathers

mostly blackish bill but with pale cutting edges (acceptable feature)

all white underparts with tinges of buff wash from throat to undertail coverts (no yellow)

unfortunately remained totally silent