Out of 6 greyhounds, only 2 have a "prey drive" and it's for squirrels. However, when we are on a walk, they have been taught not to bother with them. Our other greyhounds wouldn't bother with prey at all. They would just stand and watch them running in the yard, then turn away. However, most of them really enjoyed running with other greyhounds and playing with them.
So, we've had it pretty easy over the last 18 years considering we never took prey drive into our adoption decision.