iceman your right catching a bolter is important,, but most quik dogs can,,, its not just marking either,, its the following round of the action underground,, its as if there talking to you,, cos they know far more than the owner as to whats happening and where..,,
when your on your own , and the dog understands what you want and need, you could be in an akward place,,,, but the dog "gets it",,,, it understands....
as socks has siad in the past,,, lots of dogs go ferreting,,, but not many dogs are ferreting dogs