Both will get the job done, but the males are bigger dogs for sure. Typically, if you got a good mama dog, she'll train em for you. If not, you just got to watch em until they figure it out. The main problem with GP's is the fact they take forever to mature. I've never seen one attack a chicken, but have seen them like to lick feathers, or just run right over them because they weren't paying attention. GP's are very intelligent dogs, and good stock won't need much training, but they do bark a lot, don't like being confined, and take a couple of years before they quit acting like puppies. Here is a pic with their daddy. BTW, the pups that I am letting go were already long spoken for before I had them guys and gals...lol! Also, these are around 6 weeks old right now.