To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 3. Oblique horizontal view of a representative large-radius, high-friction trial. Climbing parrots achieve pitch stability using forces and free moments produced by axial–appendicular couples Lindsey L. Reader, David R. Carrier, Franz Goller, Michael R. Isaacs, Alexis Moore Crisp, Clinton J. Barnes, and David V. Lee Journal of Experimental Biology 2022. 225:None-None; doi: 10.1242/jeb.242305 Download Original Video