Bird Brain Waves

[Remy]

I got some CDs that are supposed to encourage certain types of brain waves in humans (delta for sleep, alpha for relaxation, etc). I had the Delta Sleep System by Dr. Jeffrey Thompson (which is excellent if you have insomnia, by the way), and it seemed like Puck was getting tired before I did! He NEVER falls asleep before bedtime, but he was getting all tired and relaxed looking. (Of course, when bedtime came, he didn't wanna.)

Do they have similar brainwave patterns to us? I don't know anything about bird brains, and would like to know more.