Movie 1.

Slow-motion replays of high-speed videos showing the characteristic beak movement pattern during head retraction 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