To make one flying geese unit,
place a Color 2 square right sides together atop a Color 3
rectangle, with outer edges aligned. On the back of the top square
lightly mark the diagonal. Sew on this diagonal marking. Cut off
the excess seam allowance. Press the remainder towards the corner.
Repeat this with another Color 2 square on the other end of the
rectangle. Make four geese in the same way...