I think greyhounds are underrated,I had a bitch years ago,ex racer, 22 mths,discarded for interfering. I trained it to jump ,retrieve, stay, the lot. It ferreted, lamped, took fox, hare, rabbit and feather. Once, when out for a mouch a hare came through the hedge about 100mtrs ahead, off she went,out in the field it stopped, she stopped, got down low and stalked to within about 20mtrs of it before it set off again. So they are not as thick as most folk think.She became the foundation for a line of good lurchers.