The pattern doesn't really give much in the way of instructions does it? I think you would PP the geese first then add the arc. Make sure to over cut the arc pieces to make sure you have enough fabric. If it were me, I would try one quarter with scraps first just to be safe.
I did find this blog that gives a color picture (scroll down)
http://www.shecanquilt.ca/2012/03/it...day-today.html
Or here is a link to a slightly easier version of circling geese without having to deal with the curves
http://piecebynumber.com/circle-of-g...paper-piecing/
Good luck and be sure to show how it goes!