They catch bears, lions, bobcats, greyfox and alot of other critters, what most think of as trash Only thing I don't let them run is deer because thats illegal here. I only hunt from my house and for fun... We have a small 10 acre orchard and the dogs main job is running bears off during the summer/fall. The other game is just for fun and to keep them in shape.
This is them on a bobcat tree earlier this month. My youngest dog (2 years this month) did the catching on this one.
He was barking treed while the old slower dogs was still trailing. 3 of my dogs are over 10... in thier younger days they have treed alot of cats though and they still do just fine on bears.
That big black dog in center is black lab mostly with a touch of rott 96 lbs. The brown dog in left corner is a pure lab. The white dog is mostly pointer 16 years old. The border callie looking dog had a lab mother... And my youngest dog is the one that looks like a walker but his father was a black lab.
The cat was just a small male... around 20lbs but then they average around 20-25lbs here, biggest ever was 34 lbs tom that was ripping off the door to the chicken house.
Heck anyone can tree a cat with hounds, try doin it with a couple ten year old labs and your gettin something done! i gotta say i gotta laugh out of that but seriously I think thats neater then heck, musta kinda hit home with me cause it looks like something that would go on around this house!!! 
