Thanks for the reply. The scuffle brought a small bit of blood around my lab's ear-minor scratch. There was also a small circular place on the side of his head-tooth mark maybe. That happened when our "visitor" while chained outside the fence found her way under the fence into the backyard. Obviously my dog attacked her as she was still chained. I quickly ran outside but they had separated. The other scuffle occurred indoors when their whereabouts weren't known. No injury then.

When humans are around they bark and carry on terribly. When we aren't around they only bark intermittently and will even be in close proximity while the fence separates them.

Is it wrong to let the new dog in the backyard?(without my dog of course) I don't know what an alpha male is. Sorry. They don't share the same toys. They eat at different times but maybe from the same bowl and location. I'm so uneducated about introducing the new dog.

I'm not sure if she is here to stay. If this situation doesn't improve, I'm not sure what we'll do. We both love our dogs.

Tell me how to introduce them to each other properly without a major fight. They are both extremely strong dogs.

Thanks!