They're very effective...
how to trap a feral cat for neutering, feral cat traps, how to trap a feral cat. I neutered my feral cat and now he lives in my yard happily!
how to trap a feral cat humanely, feral cat traps. Get one designed specifically for feral cats, then contact your local humane society for the number of the feral cat organization in your area.
Tomahawk Live Trap Flush Mount Cat Trap with Easy Release Back Door - 606F
How to Make a homemade drop cat trap « Cats
Petition · Malcom Turnbull. Stop the hiring of cat traps or Enforse Rules So the Cat is Returned Unharmed · Change.org