What are the signs when a bunny is in labor?

1. Nipples will be more visible. 2. Rabbit will be overprotective (or more protective) 3. Rabbit will whine if you try to pick them up. 4. besides her hair, the rabbit will be tearing up things A LOT ( 4 my rabbit, its a habit but it has to be alot alot aLOTLOTLOTLOT)