Keep looking...don't give up hope.....mine was gone years ago for over 2 months..came home thin and full of pineneedles so can only assume she got up a tree and couldn't get back down or when she did got disoriented.
He may be scared and hiding so tell as many people as you can..the more eyes the better...try handing out business cards with a picture on one side and contact info on the other when you meet others when you are out hunting. You can print these on your printer using the business card form and then cut them up..you don't need expensive printing.
for his safe return.