Hi, I got a new female budgie today, she's less than 4 months old not sure about her exact age. Earlier today she was acting fine, on our ride home, I noticed that her droppings inside her travel box were yellow-ish and with a very mushy texture. I put her in her cage and she was fine. This evening, I was hanging around her cage and saw that she had some poop stuck on her vent, I got some cotton swabs with warm water and cleaned it off (it happened twice this evening). While I was cleaning her, I noticed that the feathers around her vent were missing, and the remaining ones she had were green, as if they had been poop stained. I'm worried about her since I just got her and she seems really young. I would appreciate some help! Thank you!!