You don't really have to make flying geese for this border. They are all HSTs with setting triangles on each row. Make a row of two HSTs with a setting triangle on each end of the row. Sew the rows together to make the HSTs sit on point. Just be sure that the setting triangles are cut with the straight grain thread on the out side. They would be made from a large square cut from corner to corner both ways.
In the picture above, each row has two of the same color HST.