How to move anchor point
I'm trying to make the wings of the cartoon turkey flap. I want to use the rotate function which should work but I need to move the anchor point of the image down to where the rotate originates. When I try moving the anchor point, it moves the entire image around and not just the anchor point. I thought that if you grabbed the center crosshair of it, it will move it to where you want and then I could do rotation.
Can someone tell me how to do this please? Thank you. See image below:

