Excellent thread, many thanks Steve (and Alex!) - inspiring and horrifying in equal measures!
Steve, any thoughts on this adult bird from England in late March 2012 - http://birdingfrontiers.com/2012/03/...-lincolnshire/
I (and others) considered to be a good taimyrensis
candidate at the time, a bold claim i know but would seem to fit? No open wing shot unfortunately but the p10 mirror can be seen well and does seem to show at least some black on p4. Lots of black in the prims.
I don't subscribe to the Herring x LBB hybrid theory here (quite familiar with those by and large) although a michahelis
hybrid (with either LBB or Herring) might be a little more difficult to rule out - but even then could that combo still show dense nape streaking like that?.....at the end of March(!)
Any comments greatly appreciated.....