I haven't taken him to the vet but I definately plan to! He is 23.5 inches and weighs 53 pounds. He's pretty active still. I live out in the country and he and my other dog like to go on long runs, often at night. I'll post a picture of him. I've never seen a dog this skinny, but again I'm not familiar with border collies.
I just "inherited" a 7-yr. old male border collie. He was thin when I got him but over the summer he has become skin and bones. I gave him worming medicine but that didn't help. The previous owner says that he always does this and other people have told me that this is common in border collies. Another lady told me to feed him by hand, but even then he doesn't eat enough. Is this normal? If not, what should I do?