Wow...that is a hard one to find...I believe it came from this quilt shop
http://www.patchart.ch/
Even using translate on my computer I could not find anything there regarding the chicken pattern. Maybe someone else will have better luck with this site?
I did find a reference to the patterns name "Happy Chicken" in a Georgia Bonesteel show. But I don't know for sure that is the actual name of the pattern.
Sorry I couldn't do any better :(