When I first got Maggie we lived in a small house that had a couple of acres of open space behind us inhabited by all kinds of creatures including quail, cottontail rabbits, squirrels, foxes, and feral cats.  The rabbits lived in a bush pile near the back fence.  Maggie liked to chase the rabbits although she usually couldn't see them if they were more than 20 yards away and sitting still.  I would say "rabbit" and Mag would just start running toward the brush pile.  Eventually the rabbit or rabbits would take off running and Mag would catch site of them and give chase.  I don't think she ever got closer than about 10 yards from one.  She would lose interest pretty fast and find something else to sniff.

Now that she is nearing 11 years old her interest in chasing things has diminished a bit, but she still has that hunter instinct.   That is what remains of the instinct after  1000 years of breeding pugs as lap dogs.  We have a wabbit that is almost as big as her that she likes to put in its place once in awhile.  It is not clear to me why it sounds like a duck when you squeeze it, but Mag doesn't care because she doesn't hear that well anyway.

With apologies to Spirit Yoda here is Mag's version of a Wabbit hunt: