The humane solution to cat colony population expansion is trap - spay / neuter - release. (cap4pets.org)
You are stabilizing colony populations and creating a more sustainable, less stressful environment for the cats as well as the people who care for them. (arcsrq.org)
Despite the tenacity of these creatures, long term changes in the health of our waterways have caused massive declines in colony populations. (brewermultimedia.com)