My Cat Doesn't Cover Her Poop!

And it's my fault, really.

When I first brought my little cat home from the pound, she had a small litter box which sat on a large trash bag.  Whenever she would use the litter box, she found that she could reach outside the tray and pull the edges of the plastic bag over and into the box.

That was her way of covering her mess.

So from then to now, even though there is no plastic under the box, instead of pawing at the litter to cover her business, she scratches at the edges and outside of the box.   My older cat sometimes will go behind her to cover it, but lately he doesn't anymore (unfortunately). 

I guess old habits die hard.