You can hunt with however many dogs you and your buddy's can control, if there well trained then it's not a big deal to have two or three in one blind, but if they wine, all go for one duck, bark whatever I'd stick with one at a time, if your doing allot of shooting and your dog has to go along ways to get one, then you might need more than one, but they need to learn to honor another dog first or I wouldn't even try.