I was actually surprised at just how "bird focused" the Fiend is. Given his breed I would expect him to be more focused on mammals. Of course his prey drive is *monstrous*, but he's even more keyed on birds than on hares/rabbits/cats. Ground squirrels and tree squirrels don't rate particularly high either, for all they make enticing noise and run fetchingly. (This contrasts with Aidan, who was a ferocious and highly efficient rodent killer, of all varieties.) Predation aside Cyrus really seems to have a personal animus for the crow family, so they must have teased him at some point. :D

Did you ever try the Halti with Chango? And if so, did it help?