I was wondering if anyone would notice it lol.
I think the dogs associate bunnies with kitties and because we have a cat they aren't allowed to chase, I've not seen them actually chase a bunny. They do enjoy watching them though, and chasing the neighbors goats on the other side of the fence lol. We have a bunny problem in my neighborhood actually, I have to pout chicken wire around small trees and plants or they get chewed to nubs.
My neighbors mastiff's on the other hand. They are like lil pack hunter's. They'll chase em down as a group and wait or dig to get them and eat them. We have a friend that actually got pretty upset after watching it happen once. When my dogs are over there they run around like they are hunting but they aren't motivated like the others.