I have 14 eggs that are starting on Day 21. This morning, I heard peeping, and found one pip. Another one appeared this afternoon! I heard you could whistle at them, so I was demonstrating this to my husband. He informed me that I should "cluck" not whistle. He proceeded to bend over the bator and started CLUCKING LIKE A HEN!!! ....and a chick answered him! He is so proud of himself! He said, "There ya go--that's how you do it!" Too bad I didn't have my video cam. His friends at work would love to see that!