My Boozer, the bRat terrier, has picked up this habit. He LOVES lizards. He has learned the places where he can find lizards in the yard. Now, when we take him outside, all he wants to do is walk the perimeter of the yard along the fence and look for lizards. He will walk a little ways and get to a spot and then look up and down the fence to see if there are any lizards. If no luck, he moves on to the next spot. He doesn't want to play or anything, just look for lizards.

Is this bad? What should I do?

P.S. He doesn't kill the lizards, he just plays with them.

When I put Fred and Alice out sometimes they walk the perimeter and sniff , sometimes they just lay in the sun, other times they run around. I say it's their free time let them do what they enjoy!!

Have you gone out to play with him? Will he play instead of lizard hunting LOL.

Maybe play with him then let him do his thing.