I have a 4 month old barred rock hen that I got about 3 weeks ago and she has had droopy tail feathers since I got her. I also took home her sister who is also 4 months old and her tail feathers are perked up. she looks and acts completely healthy otherwise, she is eating, drinking, scratching and pecking and running around the yard with the rest of the chickens. She has not started laying eggs yet. Is this just because she is young or does this mean something is wrong? It isn't hot here so it isn't heat stress, and she is getting along well with the rest of the hens now so I don't think she is getting bullied around because she's new. I also picked her up and examined her body she looks and feels in good condition , I don't notice any hard lumps in her belly or anything like that, vent is clean, skin is fresh and flake free, feathers are nice. I wanted to show these two birds at the fair , they are beautiful but I am afraid this will be a bad defect.