There's a great post over on the Mille Fleur Cochin thread with pics of split wings if anyone's interested:
https://www.backyardchickens.com/forum/viewtopic.php?pid=7143509#p7143509
https://www.backyardchickens.com/forum/viewtopic.php?pid=7143509#p7143509
Hens go broody when you don’t want them to… and won’t go broody when you do.