Just got 4 new chicks within the last couple days. 2 SL, one SLW, and one is a Buff O. 3 are about a week old, but I'm not sure about the Buff. She seems slower than the other chicks, and when she walks, it almost looks like a waddling kind of walk. Her wing feathers also seem less developed than the other chicks, with a split section that almost like her wing feathers look like two fingers. She is eating, drinking, pooping well. She sleeps more than the other chicks and seems a little off balance sometimes. I wonder if something is wrong, or she's just younger? Also the SLW (who is the biggest right now) is kind of a bully and pecks at her and the other chicks. New to raising chicks, so any advice helpful. Thanks.