I have two males and just lost one. I have had as many as four unaltered males at the same time. I've always run all my dogs together. They spend long hours in the house together wherever I am (their choice) or outside in their fenced yard. Obviously. I have to separate males from females in season, but the boys have always run together with no arguments. My main problem is actually the girls insisting on humping each other when someone's in season, a concern in hot weather. Right now there are two girls on the couch, a girl and two boys on hthe dog beds, and a girl on the rug at my feet.

I've had multiple intact males in my home with bitches coming into season. I've never had a grumble between the two of them. It's just not allowed.

One male would lay on one side of the crate (with the female in season inside) and the other would lay on the opposite side. I've never had a fight nor like I said, a grumble between them.

I have always had multiple intact males with bitches in heat. I think it is all the way you handle/run your dogs/pack. If you are the alpha, there should not be a problem. Make the rules and stick to them.

We once went to a show with 7 intact adult males who did not live together and two bitches in standing heat. No growling, no howling and unfortunately - no eating with a few of them.