because a decent dog will take all game for you,fur and feather,nice to have a bit of variety in the freezer i would say wouldnt you,cant beat the feeling of watching a lurcher retrieve a pheasant after a spectacular mid air strike ,in answer to the question iv never really had to try and get them to retrieve feather curiosity and instinct i find is enough for a pup to get them going
catcher 1 ,bang on mate works for me