But she will likely keep digging there since she has discovered the buried animal. She probably smelled it - dogs are used for cadaver searches. Now that she knows she found something - and the smell is still there, she'll keep going back to it. I might just let her dig and dig until she realizes that there is nothing there - and then she'll stop. Unless you think there are still bones there - in which case I would dig up the remainder myself and rebury somewhere out of her territory.