>>63865176
Personally, especially with the ground hogs,you should probably do what you've been doing. It sounds like you dont want to be too invasive, so the best option would be to simply look out for the bunnies, perhaps mark out a little area with bricks/stone and plant some taller plants, it could allow the bunnies a place to hang out without being too exposed.

Otherwise, the flea treatment idea is good, just keep an extra eye out for any little critters while mowing or whatever.

P.S. is an Arctic Ground Squirrel what u are talking about? Cant find anything about Arctic Ground Hogs...