I woke up this morning and tended to the chickens per usual. When I went to the coop, I noticed one of my wyandotte hens was not walking like she normally does. Her backside sags and she prefers to sit down. She CAN technically walk, but it seems uncomfortable. She was not isolating herself from the rest of the flock, and her legs are fine. All of my Wyandottes came from a family who could no longer take care of them; I did not raise the chickens myself. The hen is about two years old, and seems fairly healthy, aside from this issue. I have had an occurrence of another one of them having ascites. I checked this one and she does not have lice, broken feet, or any other issues that I can tell. I do live at a high elevation, so I am thinking it's ascites or a fatty liver. I put her in my isolation coop just in case . Any advice would be appreciated!