Just curious about this behavior. After looking at all the very nice bunny condos here at binkybunny, we decided to build a condo for our two bunnies. The bunny condo has been in their pens for about 2 weeks.
The floor of the condo is a piece of wood covered with some padding and fleece fabric. The bunnies each dig at the fabric and pull at the fabric. Its pretty aggressive. If I go to pet them, they settle. Both bunnies are male and neutered. Their living area is carpeted but they do not dig.
Again, curious about the digging behavior. I haven't seen it before.