A number of years ago my ex was using the push mower, because she was afraid of the lawn tractor.
Anyway, she whacked a whole nest of little baby bunnies.
I didn't see it as I was otherwise engaged.
She did explain to me, after having to take a bit to calm down, that she was just mowing along.
All the sudden the mower bogged down and bits of rabbit began to fly. By the time it takes to release the drive it's to late to do anything.
A number of years ago I also ran into a rabbits nest, the only thing I could think to do was to cover the survivors with a bathroom sized trash container. Just to keep them in the nest until I could figure out something else to do.
It didn't matter, by the next morning they were all gone.
Oh well, the cats ate well that day.