The genuine half cross collie greyhound I had couldn’t catch a hand full of rabbits round by me , it was fit healthy and started at the right age , just didn’t have the gears , neither did couple the other pups of the lads I spoke to , I reared a half cross bull greyhound wich to be honest three very greyhoundy , that caught plenty of rabbits a night but ended up smashing it’s feet up a lot , ive also seen a 28” half cross bull catch 20+ rabbits hare and track deer on the same land I’ve seen collie greys not get close to , but I’ve also seen saluki grey collie grey with a Touch of bull in kill