Here’s a video on a trap and release cat spaying and neutering program at the University of Florida. It’s called Operation Catnip.
Trap and release programs, are a partnership between feral cat colony caregivers and local organizations that trap feral cats, fixes them and then returns them back to their cat colonies. The program helps control the feral cat population and reduces complaints about nuisance cats.
To learn more about Operation Catnip visit their website.