The Club-winged manakin produces a courtship song without even opening his beak. 🤯 Learn more in my latest article for Beaks & Bones! 👇 https://beaksandbones.substack.com/p/singing-feathers Based on this original study: https://doi.org/10.1098/rsbl.2012.0382 #birds #birdsofmastodon #science #biology #ornithology #evolution #scicomm #BeaksAndBones