Went out to check on the bunnies this morning and they have moved on. Best case, they decided it was time to go out on their own. The other possibility is that they were eaten. I don't see any signs of that though. I read a little about bunnies and it sounds like once their eyes open, they don't stay too much longer with their mother. I am hopeful. Now I can finish weeding my herb garden and get ready to add some new plants for this year. Before long I'll probably be cursing those rabbits eating my garden plants.