Every since Cruz was born, he has made this noise while he nursed. He only does it when he is tired and trying to fall asleep. Its such a funny little sound. Actually its not a little sound, its pretty loud. Like wish-I -could-turn-the-TV-up-but-I-cant-cuz-your-trying-to-fall-asleep loud!
Have you ever met another kid that does this? My funny little music man.