Thanks so much for the info. and pictures. I am going to try the suggestions. I had thought about muzzling them both to at least be able to have them in the same vicinity. I am rotating them in the backyard so that they both get exercise and fresh air. At night they sleep in different bedrooms. The vet suggested spaying the female and that might help. My dog is neutered. What does it mean when my dog ignores the other dog and won't look at her? For example, she is inside the fence. I'm walking him on the leash outside of the fence but beside it. He tries to act like she isn't there. He won't go to the fence but just kind of walks in circles never giving her any attention. It's kind of comical. But, if i were to give her attention,of course he would start barking. They are complicated creatures!

Again, thanks for everything. I'll keep you posted.

Cheryl