Go To Search
Explore Porter County
Click to Home
FacebookRSS
Email

TNR Stabilizes Feral Cat Colonies
page banner

Trap-Neuter-Return Stabilizes Feral Cat Colonies

Feral Cat Colonies that are involved in TNR diminish in size over time.

  • During an 11-year study of TNR at the University of Florida, the number of cats on campus declined by 66%, with no new kittens being born after the first four years of operation.
  • A study of the impact of TNR on feral cat colonies in Rome, Italy, also observed colony size decrease between 16% and 32% over a 10-year period.


Trap-Neuter-Return quickly stabilizes feral cat populations by instantly ending reproduction and by removing socialized cats from the colony.

  • A TNR program at the University of Texas A&M neutered 123 cats in its first year, and found no new litters of kittens the following year.
  • Over the course of the same study, 20% of the cats trapped were found to be socialized stray cats and adopted.