So I went out to check on my girls today and was watching while my Easter egger was preening and noticed a large lump near her tail feathers when she fluffed up. I scooped her up and looked at it and it has small feathers coming out the top and was slightly irritated. She didn't mind me poking at it and I stuck it with a pin to see if it would pop. It is hard and only bleeds when poked. No puss came out. It didn't seem to bother her to much but she was squirming by the time I wanted to take a picture of it. It wasn't causing any pain but I don't want it to get infected. Is it ok to leave it or should I cut it off? I'm a vet tech and have all the meds and resources but it is a Sunday and just wanted somebody else's opinion before I go dragging the poor bird to the vet for the day.