Hello, so my dad showed up with a chicken to my house 1 week ago after his friend didn’t want her anymore. She’s our only chicken (we are thinking about getting her a buddy soon). But since she came she’s been slow and not a big eater. At first we thought maybe it’s her getting used to a new home but it seems that she just keeps getting worse. She is now pooping a pure white poop and her vent has gotten white from it. She seems down, doesn’t want to eat, although will drink some water though slowly. She just stands around all day and lays down a lot. I put some apple cider vinegar to see if it would help her Incase it’s an infection. But has anyone dealt with this before? Know how to treat it? I attached a photo of her last poop in case anyone wanted to see it.