Birds is a cycle of nine variations structured on the basis of numerical pattern. This pattern serves as the scaffolding for the combinations of movement that appear in the various dances. The values comprising this array are manifested through the notation either as amounts of movement (l = 45 degrees), as positions, as whole body rotations (change of front), as directions of transport, or as definitions of the diameters of curved (conical) movement paths; and especially in the patterning of the movements in tme throughout the whole cycle, the durations being determined in accordance with the numbers of time units indicated by the values that comprise the array.In each dance this ordered array can be discerned in some combination of the various manfestations mentioned.