A Bunny Is Nature's Earthmoving Equipment

Thanks, Marjan and bunny Sniff! Marjan writes, "[Sniff]'s never dug in her life but we have just emigrated to the Netherlands and I think she may have seen my mum's two bunnies (next 'door') showing her what to do. Few days ago I put grass turf in their pen and to protect it from getting covered in her dug-up sand I added a row of roof tiles."