Hello. A few weeks ago one of my hens started to seem very unsteady on her feet, her right leg just seemed to give way beneath her. To be safe we separated her from the other chickens. She progressively got worse until she seemed to have no control over her legs whatsoever and they just flailed around at odd angles. After 3 days in a row of coming home from work to find her stuck on her back I decided to put her out of her misery. I have just looked out of my window to see one of my roosters displaying the same behaviour that my hen started with. He can walk if he needs to but with a limp, if there is no need for him to rush he seems to try and stand up but the right leg gives way beneath him. I have also been battling mites over the past few weeks. The coop has been cleaned and powdered for the past two weeks and will be doing it again tomorrow. Could the two issues be linked? Thanks in advance for any help!