I'm late to the neighborhood cat thread, but also want to voice my displeasure with people who let their cats roam the neighborhood. Wildlife do not exist in the numbers they once did and as a previous poster said need every bit of help we can give them. I have seen cats hide about 6 to 8 feet away from a bird feeder and pounce and kill birds. It is remarkable. They also kill a lot of rabbits, ground squirrels, etc. that make for prey for your owls, hawks, (maybe bobcats or foxes for our more rural readers), etc. No prey in large quantities, no fun predators to watch around your neighborhood.
Just my two cents. I hope people reading this will read up on the mass predation and killing neighborhood cats have on native wildlife. Count me in the boat that hates to see cats patrolling my neighborhood and property and I would love to know who those cats belong to. I haven't gotten to the point of trying to live trap those cats, but I've thought about it.