> 
> Given these four, they do not single out any one as the main factor. Any one of these alone could be the deciding factor, most probably (in my opinion) the wide dispersal. 


Agreed Peter, with the likelihood being that it is the combination/synergy of all four factors.   The bigger question is whether or not it is possible to replicate the successes of these ferals in the managed setting.  I’m making an effort to ‘spread’ the stock I’ve been working with to surrounding counties/states.  So far there are six of us seeing similar outcomes, with several others planning to try them this year.
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