The stray cat problem in Ottawa is significant and twofold: feral cat colonies exist all over the city and are not managed, in part because there are no publicly accessible spay/neuter-and-release programs.
These colonies grow ever larger when pet cats are not neutered or spayed, and are abandoned, lost, or allowed to be outside to breed with ferals and other strays.
Ottawa Stray Cat Rescue
PO Box 34047
Nepean, ON, Canada