We ended up trapping 5 cats but three were repeat customers who are so desperate for sardines they will get into a trap more than once. This means we are almost done with this colony after almost a year. Up next is one of the local trash disposal places.
So wait what are you doing?
Trap Neuter Release. Find homeless cats, trap them. Get them fixed and vaccinated against rabies. Put them back where they were found. This stops them from breeding out of control.