YEEKS! Yay for your hen!!!! Warning though, if it's daid, best dispose of it quick or even just throw it wayyyyyy back in the woods. Getting caught with even the feathers is risky. Even though it committed Hari-Kari having hawk feathers is illegal. I'm almost positive if I showed my fish and game the 'scene of the crime' and explained it to them, they'd believe me and all would be well since I have a good relationship with them, but then they'd take the carcass away. It would be good as far as them being able to measure, analyze and track it though if you think they'd be ok to deal with.
Isn't it amazing how powerful they are for their size? Speed and momentum are wonderful things, as long as it's not your hen that becomes dinner!