Please help me!!! I don't know what to do!?

Ok, so today i let my dog outside and when i looked out the window she was digging a hole in our yard. But then when she ran away, their were 4 bunnies in the hole! then the bunnies started digging through the hole and hid themselves in the dirt again but i have noticed that the mother has NOT came back!! i am scared that they will die and when i cut the grass, i will have to cut around the hole and i have a table over the hols so our dog cant go to the hole but the mother has not came back !! should i give them carrots, lettuce but how to i give them liquid?? please HELP ME!!!!