bi-blacks

My very first sheltie was a bi-black. She was the best dog I ever had and I know I couldn't have survived without her, during some really bad times. I'm now on my 6th sheltie, but I haven't let myself buy another bi-black. I'm afraid that I would expect too much from a dog that looked just like her. Bi-blacks are my favorite color of sheltie, though. Hope yours are very special too.