Some links for your consideration:
Mouse or Mice?
Meadow Mice
Deer Mice
House Mouse
Mouses and Mices Populations in New Zealand's Forests
Something Else to Consider
Do you have enough time to do your own extrapolations from the above information?
Since you are in Las Vegas, I think this last link is appropriate and useful. Enjoy.
Bonus Web link
We need to meet up in Vegas sometime, Phat. We can invite Andy to join us. I'll bring the dynamite, you bring the guns, and Andy will bring the books.
Le Misanthrope
Written from the Planet Neptune.