We have a little Seebright/OEGB mix roo. He is super tame and all of our chickens love our dog. But the other day this roo decided to try to mate with our dog (who is a female, but spayed). She didn't mind him being on her or even pulling her fur! She (a lab/retriever mix) was laying down out back in the yard and he would dance around her, then jump on her back and pull a chunk of fur up (like a hens neck) and try to mate. She finally got tired of it and stood up a knocked him off. What do you all make of this? And has anyone ever seen this before? It was really kind of funny, he was very serious!!