Rescued vs Birdnapped? Pink Pigeon?

[pinkypigeon]

I found a pinkish looking bird that resembles a pigeon on the beach in Massachusetts. I felt it may have been out of it element and may not survive in this cold. I first thought he was a tropical bird due to his (crest) feather on the back of his head sticking up in the air and his unusual color. I approached bird and he seemed to stumble a bit and looked a little tamer then a wild bird due to him letting me pick him up. I brought him home and he seems to like my dogs old crate and wild bird seed and water. I have spoken with the Massachusetts Audubon Society and they recommend based upon my story of event I keep this bird for the winter and then in summer free him in a park where people generally feed birds. So I am not sure if I had rescued this bird or taken him away from his environment. Would some one like to see a picture of this bird to help identify his breed so that I may better care for him during the cold winter? I could E-mail picture.