As for the cow bells I talked about.....I didn't mean a real cow bells.

You find them on some bird toys, shaped like a cow bell, small enough for the cat, but large enough to make a sound worth while. The bells that come on cat collar are just not enough to warn animals of the cat comings.

It Really takes the fun out of it for the cat though, they get in pounce mode ready to jump and then the bell sounds. Poor cats they look like their saying "What the Heck happen"