New rescue

Hello, 

I am new to the site, so please correct me if I am posting in the wrong place. 

We recently (this past Monday) rescued a dog. Gizmo is 11 months old and neutered.  We were told he is a mini border collie mix. Do you think this is correct? If so, what is his mix? Also, what health issues are common? 

Thank you! 

Here are some pictures: