No doubt, and a nice pic too.
Why? or do you mean, yes it's a Snowfinch in Afghanistan?
xujie/pengkuan
To be honest with you, despite trawling the net rather extensively, I cannot find a single image of Afghan Snowfinch, also know as Theresa's Snowfinch
Montifringilla theresae so I would dearly like this rather excellent shot to be of this apparently rare species.
However, looking at various reference sources and illustrations which are presumably based on skins ie Finches and Sparrows by Clement et.al and HBW 14 (where the species is known as Afghan Ground Sparrow), comparisons with this image do not fit IMO. The wing pattern, particularly the primaries are wrong for AS. The primaries should show a rather obvious white wedge midway, the tips to the secondaries should also be dark. I presume these are young birds due to the bill colour and lack of facial markings but to my eye, the features we can see fit White-winged Snowfinch
Montifringella nivalis better than the illustrations portray AS. Also, if the illustrations in Clement are accurate, the primary projection/ tip would almost reach the tail tip unlike WWS which fits better with the above image.
I would prefer to be wrong and congratulate you on what may be first decent images of a desired species, but at the moment, I don't think they are Afghan Snowfinch.
Mark