... Limited 2004 2004 cockatiel Nymphicus hollandicus flight inertia accelerometer Our main goals in this study were twofold: (1) to investigate the variation in instantaneous aerodynamic force production during the wingbeat cycle of birds flying across a range of steady speeds and (2...

... the mechanisms employed by cockatiels ( Nymphicus hollandicus ) to modulate muscle power output. We found that pectoralis contractile function in cockatiels was generally conserved across speed and over a wide range of aerodynamic power requirements. Despite the 2-fold range of variation in muscle power output...

... ) and transitions between gaits in cockatiels ( Nymphicus hollandicus ) and ringed turtle-doves ( Streptopelia risoria )trained to fly in a recently built, variable-speed wind tunnel. Gait use was investigated via a combination of three-dimensional kinematics and quasi-steady aerodynamic modeling of bound...

... aperture control and thus in gating airflow. In parrots (cockatiels, Nymphicus hollandicus ), direct observations show that even during quiet respiration the lateral tympaniform membranes (LTMs) are partially adducted into the tracheal lumen to form a narrow slot. Contraction of the superficial intrinsic...