No she is not eating them. She leave them in front of the house door. She was bringing them into the house before, but now I'm careful, doors are closed. There was one occasion when she was eating mice... I just wrote that story to ewkaw in comment under this post.
Now she is eating only flies and spiders and butterflies and some crickets.
Birds, snakes, lizards, mice are just for game.
...
I used to save them. But I gave up. It is not fair to her. To steal her pray. It is not good for her self-confidence!