I think these are the directions for cutting kits for several quilt designs, including the Northern Cardinal (the first one):
http://www.unitednotions.com/ss_winters_song.pdf
As far as I can make out, the cutting directions are given for 1 kit and 10 kits. I think you could rely on the amounts given for 1 kit (although I always buy some extra).
Edit: This photo seems to show that you need 3 panels (of 4 pictures each) for the quilt.
https://www.etsy.com/listing/2407691...campaign=Share