T.L. Hedrick, B.W. Tobalske, and A.A. Biewener.
Estimates of circulation and gait change based on a
three-dimensional kinematic analysis of flight in cockatiels (Nymphicus
hollandicus) and ringed turtle doves (Streptopelia risoria).
Journal of Experimental Biology, 205:1389-1409, 2002.
(bibtex:
Hedrick-2002-ECG).