tmichael

Maybe just me but I can't see any obvious difference.

The original maurus photos did look a bit unusual (supercilium anyway) but John's putative stejnegeri - presumably just another random Stonechat that happened to be around nearby? - looks to have a very similar super and to be otherwise identical except maybe in the crown streaking.

Mike Turnbull

tmichael

Also whiter alula, if that's what it is.

Mike Turnbull