Hundreds of thousands of cats live outside in Chicago. They prefer outdoor life and do not seek human interaction. In fact, they prefer to be left alone. However, without human intervention, they reproduce quickly. One female cat can have an estimated 75 kittens in her lifetime. Her female kittens will do the same. The multiplication is staggering. Tree House is committed to containing the feral cat population. We do this through Trap Neuter Return, in which we spay/neuter feral cats and return them to their communities, support of volunteer feral cat colony managers, who care for community cats and provide them with food, water, and shelter, and our innovative Cats At Work program that places feral cats in residential and commercial settings to provide rodent control.