My Grandma and Grandpa (K&L). Have found a ton of cats at A city park . What they have done is trapped them and then had them spade or nutered so that they won't have kittens then they have there ear clipped sp that they can see which ones they have gotten and whats ones they need to get. After that they return them to there home. They have done such a good job and they couldn't love cats anymore then they do: >)