How to Make Birdcalls With Your Hands

Take both of your hands and arch them with your thumbs sticking out.

Join your hands together so that your thumbs meet parallel with each other. Lock your hands moderately tightly.

Put your bottom lip on the knuckles of your thumbs and your top lip at your thumbnails.

Wet your lips and blow fairly lightly.

Move the part of your hand that's farthest from you in and out to get high- and low-pitched sounds.