Question? Does anyone know what the breeding is on an Idaho Shag? I lost my good Border Collie a couple weeks ago. She was 14 and went every where with me. Today the neighbor comes over unannounced with a puppy. He has some real good Border Collies. He came to have a young shag bitch. Well she got bred by one of the Border Collies. So the pup is half Border Collie and half shag. I know that the shags have Airedale in them but not pure what else is there?