I got my order of 1-day old chicks a little over 3 weeks ago... I guess they are closer to 4 weeks old (this Friday) and have noticed my Barred Rocks are developing a little slower than the RIRs & Red Stars. However, 1 particular BR is about a quarter of the size of the others and is developing her feathers really slowly (see pictures). She appears healthy, active, and is eating (and pooping) just fine. She is about the size and as developed as a week old chick Has anyone else experienced this? Do you think she'll make it? Right now I have all 5 BR's separated from the rest in their own pen to give the little one a chance to catch up, no one picks on her... they are actually pretty protective and let her get in the middle of them if they are scared. Thank you!