Peter thanks for answering my question, by coincidence today I am planning to drag a bit of a roe hind up a field (that my Dad shot the other day) to see if Ilka will track it as I've noticed her following where birds / people / things have moved around so she might (not saying it will happen and can't say I know allot about it) have another use with my Dad out stalking as well yet, let us know if/when you have success with you muster would be interested to know. And think I will find your advice on stopping for older dogs useful, Ilka sometimes does the slow motion or take a step or two before sitting.
Lovely photos of Osca he is cute and looking well yes his marking are similar to Ilka.