Crested Tit Warbler_16-06-09_Leptopoecile elegans
The crested tit-warbler is a species of bird in the Aegithalidae family. It is found in China and possibly India. Its natural habitat is boreal forests. It generally has a red hint to it and a bit of blue on, or near, its wings. Wikipedia
I think HBW is nearer the point as it describes the male's colours as "exquisite ". I was so taken aback that I used my 100-400 zoom at about half its maximum zoom. Doh!
3,969 metres. Mengbi Shan forest, Sichuan.