By practicing TNR (trap/neuter/return), we are able to control cat populations and reduce the number of feral cats and create a net positive impact on the small animal population of Chicago. While outdoor cats (managed and not) are natural predators to birds, Tree House Cats at Work are also provided with food, water, and shelter. Our friends at Best Friends have an excellent resource on how TNR helps with wildlife conservation! You can read that here: https://bit.ly/BestFriendsTNR