I wanted to know if you guys know what this puppy we found is mixed with because I've gotten a bunch of mixed answers. Most say either pit,lab,boxer, or German Shepard

http://i3.photobucket.com/albums/y66/MrzCabrera24/072610183230_01.jpg

From the face I'd say Jack Russel, how big is he? Can't really tell from the photo.

Have you had him checked for a microchip?

Looks like a shepherd mastiff mix I once had.