What bird sounds like a whisper?

Question

I heard something sounding like someone blowing into a whistle too hard, it was like a whisper...then I saw a Hawk sized bird with a reddish belly fly to the next tree.

What Kind of Bird is this? (central NC)

Answer 1

Maybe a Red-shouldered Hawk..listen to thier call here:

http://www.birds.cornell.edu/AllAboutBir...

Answer 2

Maybe a hawk or mockingbird.