The one in your hand is a silver laced wayndotte. looks like you also have some black jersey giants and some buff orps as well as some white plymouth rocks.
Those are my guesses
keep us posted on the feeder. I think to make it work you will need to take the T out and replace with a Y and a 45 degree on each side of it. The feed is going to come straight down and hit the T and that is as far as it will go.