Object Hanging From Vent

Hey there, feathered friends enthusiasts! This morning, I stumbled upon something quite alarming in my coop. One of my girls was just standing there, looking a bit uncomfortable, with something unusual hanging outside of her vent. I’ve raised chickens for a while now, but I’ve never encountered anything like this. A quick search online didn’t yield any answers, leaving me feeling a bit lost. To keep her safe and cozy, I’ve separated her from the rest of the flock, but I really want to help her. If anyone has experienced this or knows what could be going on, your insights would be greatly appreciated. Let’s rally together and help this girl out! Thank you so much!