Great Blue Heron

Orion is 15 years old. She was declawed as a kitten. She's spent all of her life as an inside cat. She's now deaf. She has been asking to go outside and I figure "At her age, why not?" You wouldn't think she'd have much going for her - maybe all she'd do is sunbathe on the deck. Nope. She's been supplementing her diet w/ varmints. She brings their tiny carcasses up by the deck door to ask if I'd like some or to devour herself. I'm surprised by how many she can catch.  I'm not entirely sure what this means:
There are hoards of voles and mice around my deck?
-or-
The voles and mice around my deck are all slow and stupid?
-or-
Just because you are old and have infirmities doesn't mean you can't still enjoy terrorizing the neighborhood.