You've chosen two fantastic objectives to go into this faction with. Swapping daylight actions and having a worker placement aspect are both novel and interesting mechanics to bring to the world of root.
Supporting those mechanics with a new recruiting mechanism is also so fun, it leads to such an interesting turn ahead of you with great decisions making. Though I will say, if you DONT have a bird card to recruit with starting your turn, I fear you're really missing out on what makes your faction so fun. Especially since there's not another way to gain warriors. Maybe even just allowing them to ALWAYS have that recruit might not be too gamebreaking. Or even just discard ANY card to recruit. Birds already feel like they get stuck in hands and in the decree :P
I know you could most likely flip a matching favour token to get around needed the card to spend for this, but I can see some scenarios where that may not be possible / would hurt. I may need to just bite the bullet and playtest them instead of theorizing tho :)
I was worried these guys wouldn't want to battle, but having the warriors you LOSE in battle as attacked become what's placed in the musters is a really cool way to MAKE them want to. Really sweet stuff.
Your board and pieces design is also top notch as well as the mechanics supported storytelling.
Really gonna be awesome to following along with how these guys are developed. I feel there's so much deeper mechanics here that I haven't even scratched the surface on yet.