Hi all I hope this was an appropriate place to post this, but I am getting quite worried about one of my chickens. I have three, all from the same hen, and I am new to chicken-owning. They are apparently all hens, though I suspect one is a rooster, but that's irrelevant to the point. Two of the chickens are growing well, they are fully feathered compared to when I got them three weeks ago. They have filled out very nicely, and no longer look fluffy. But one chicken, looks like it is barely any bigger than when I got it. She was always the smallest, and the most afraid. She is less afraid now, in fact she's quite brave now. I see her eat and drink, scratch and peck at the ground and at her food. She is still fluffy, and has VERY few feathers (all on her wings). I don't see the others pick on her, though she sometimes sits by herself because she can't reach the higher of the perches. They are fed wheat, chick starter (just moved over to grower, as per the brand instructions), kitchen scrap veg. They also have access to the very large run which has plenty to scratch around in. They also have access to shell grit, and pebbles etc. that can be found in the dirt in their run. I am not sure what to do. Why is she the only one not filling out? I am about to try to feed her some scrambled egg, as I've read she might need more protein? And I will go the store later and get some meal worms. Have you seen this before? If so, do you have any advice? How did you handle this situation? Thank you so much. Edit: I just wanted to add that I've just gone and fed her a scrambled egg. She took to it well, although I couldn't get her alone, so they're all eating it. I noticed she does have a few feathers on the side of her legs, though I wanted to mention that you can see the pink of her skin under her fluff on the tops of her wings and some of her back. Her feathers are also growing quite non-uniformly (they look quite scraggly). It's got me quite worried.