Fig. 2. (A) This schematic gives an operator-side lateral view of the experimental setup with the cockatiel in position in the Concord Field Station wind tunnel flight chamber and the data cable leading from the bird to the recording equipment. The dorsally positioned Photron camera is shown; the two laterally positioned Redlake cameras were placed on the far side of the tunnel, one lateral to the bird and one posterior-lateral, and are not shown in the figure. (B) A cockatiel with the accelerometers attached to the animal with the accelerometer axes superimposed and the position of the whole bird center of mass (C_T) and body center of mass (C_B) indicated.