Feral Cat Rescue is a great organization.  They work through a government grant and they vaccinate and alter all the feral cats.  At no cost to you, Feral Cat Rescue will re-home a colony, which consists of as many cats as you need or want (1-100).  In return for re-homing at your location, you have to provide daily fresh water and food. 

These cats are feral for the most part but will control your rodent problem.  I know several people who have re-homed cats and they did their job without the wonderful surprises we have with those rat snakes visiting.  We had to re-home one of those last night.   I would rather have feral cats taking care of rodents then rat snakes.  

If you know of anyone that might need a cat or even 100 cats please feel free to contact Janis Laughlin at jtlaughlin@sbcglobal.net.  She can answer all your questions.