Nancy Drew: Warnings at Waverly Academy Easter Egg - Raven Egg

Once you have managed to enter the locked classroom, go forward once and then turn around so you are facing the door. Go to the left column to look at the raven. Once you are looking at it, press the following parts the following number of times:
eye (three times), wing (two times), tail (once)
The raven will spin around and then present you with an easter egg.