This pattern is a tessellation -- when the same shape can be repeated and interlocked without any spaces between. It's all done by hand, with an English paper-piecing method. It makes a great charm quilt or take-along project. If you are unable to purchase this pattern through Craftsy, it is also available on Etsy at this link. https://www.etsy.com/shop/quiltedsunshine?ref=l2-shopheader-name BASIC SKILLS NECESSARY It would help if you are comfortable with hand sewing. SIZING / FINISHED MEASUREMENTS There are 4 bird sizes included. Keep adding birds until you get the size you want.