Lisa,
You know that some people don't understand what you do. I have a GREAT respect for ANYONE who does rescue of any type. TNR is rescue!! I think that maybe some newer people don't realize that you are working in a park. I'm getting the feeling that they think you are releasing in some kind of city atmosphere. Maybe that would help them understand a little better.

I also want to say that IN MY OPINION there are some older ferals that should NOT be trapped and held in captivity. I know there are people who believe that all should be trapped and then placed in shelters until socialized and adopted. From what I have seen in the shelter these cats have been given a death sentence. They are older, set in their wild ways, and FREE! They come into the shelters and get sick, lose the will to live because of the caging. They give up on life. I don't want to be responsible for breaking the will of a creature just so I can tame him/her. The greatest thing I think can be done is to know that you offer them shelter and food. You know they can stay warm and dry and they will never be hungry but they still have their freedom. Of course the spay/nuetering is vital.
I know I'm going to get blasted for these comments and one thing I want to make clear is that I don't think this works everywhere. I don't think trying to set up colonies in very populated/city areas is always a good idea. Too many human dangers. In the right situation, like the park, its perfect. I think you and your wonderful hubby have given them their own personal Eden.
Please everyone before you attack me please make note that I said this DOES NOT apply to every situation!! Each circumstance is different. I am an advocate of city cats being TNR'd to barn cats if they are older and don't want to be pets.
God Bless you and all of these wonderful people who do rescue work.
The other Lisa