Is this normal? Day old Aracuana

[pennyJo1960]

Hello all.
I picked up a day old Aracuana yesterday...I noticed when we got home she had a little 'string' hanging out of her backside. I have attached a photo. I tried to give it a little pull but nothing happened. I didn't want to pull too hard and hurt her (hopefully her). Is it some yolk that got stuck? Since I've put a photo...do you think this is a blue or lavender aracuana? Thanks in advance.

you can clip real close to the body