Not my images but taken by an acquaintance who posted them on a Facebook friend. They were taken on 28 July at about 2600 m. The images are not great and need cropping but it's an interesting-looking Leaf Warbler with a very heavy and broad lateral crown-stripe and a bold whitish crown-stripe. The broad main wingbar, dark primary bases and centres to greater coverts visible in one shot and that badger-striped head lead me to the proregulus group. I was thinking Sichuan Leaf Warbler, Phylloscopus forresti, which definitely occurs here, but one of the images has a suggestion of a pale rump, making me wonder if we should also consider Chinese Leaf (yunnanensis). Emei also occurs here but I ruled it out - I hope I was right to do so! Any suggestions welcome. Grahame, John Allcock, Rockfowl - if you're around.....