To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 2. Animation of the tracked landmarks and rigid body movement inferred from these landmarks during beak retrusion in Dryocopus martius. Cranial kinesis facilitates quick retraction of stuck woodpecker beaks Sam Van Wassenbergh, Tim Andries, Evy Pauly, and Anick Abourachid Journal of Experimental Biology 2022. 225:None-None; doi: 10.1242/jeb.243787 Download Original Video