The next bird was we at the time thought Pallas's Warbler. In the field the jizz was all wrong for Yellow-browed Warbler, looking bull headed and short tailed with very prominent black eye stripe and yellow supercilium and double wing bars. I left for work happy with the tick, but after uploading the photos has the look of a very strongly marked Yellow-browed Warbler. To confuse the issue the bird was calling like a Pallas's. Comments very welcome as yet I have the box unticked.