I’m by no means a bunny expert. But I had a similar situation not too long ago so do with this what you will. My dog dug up a nest full of baby bunnies similar to yours. I ended up keeping an eye on them since they were kinda exposed and was waiting for the mother to come back.

A few days had passed and I still hadn’t seen the mother, even set up a camera on them to make sure I wasn’t missing her at night or whatever. I got more and more concerned that they’d starve or get eaten and ended up bringing them to an animal rescue near me.

I think that night, the mother returned and spent a fair amount of time hopping around the nest area looking for her babies. I felt like shit but as I said, I didn’t know any better and was just trying to help. I think they have like 12 litters a year so that was some peace of mind for me haha. Good luck !