Loki&Thor

That's funny, because he lifts his paw and howls a bit.

Can you tell if my dog has any border collie in him? I got him from the SPCA, and they had him listed as a "pitbull mix". I don't really see any pitbull, but was thinking foxhound/border collie maybe? Whatever he is, I love him.. but I am curious. Or I could be wrong. Can you guess help me figure this out at all? Thank you in advance, J