The tutorial can be found here, from Wombat Quilts.

Each block should be four different fabrics all in the same color family (ie: blues, greens, etc.) along with white for the triangle backgrounds. It's your choice what color(s) you make. Let's make a rainbow of chickens!

This will be a lottery drawing - you get one chance for every block you enter. How many chickens will we have in our coop? If we have enough blocks, there could be two winners!