So she must have hatched in the middle of the night, she definitely hatched early. She is very active and chirping a lot but has this on her bottom. It’s just there and doesn’t seem to be receding. She is moving around, walking and drying off in incubator. She doesn’t seem in any distress that I can’t tell. There was like an umbilical cord thing in the end which was dried up and shriveled. I’m new to the chicken world and this is the first time we have hatched eggs. What do I do?