help me id this bird please!

Hello, I live in Manhattan and was stunned to find a huge bird on my fire escape clutching a rather unfortunate pigeon. I couldn't find my camera in time but this bird was at least 2 ft. tall w/ golden eyes and a curved beak. It's feathers seemed flecked with brown,white and a goldish color, I think it's feet were yellow. This website identified it as a peregrine falcon but the picture was quite different from what I remember seeing....any other ideas?? Thanks

Source: http://www.whatbird.com/forums/forums/thread/21692.aspx