Just wondering if there are any rabbit hunters out there.

I mainly rabbit hunt, give up the deer hunting/squirrel & stick w/ the bunnies.

I have 4 dogs, which I consider to be good dogs, 2 are getting old & I need to breed them, but I haven't had much luck in raising pups, parvo is my worst problem. I've considered a lot off the ground to raise them, but haven't gotten that far yet.

Is it best to breed in the summer/spring/fall/winter?

Just a different topic of sorts.

Thanks!