Hi, I have several 3-week old barred rocks in the brooder. One of them is larger than the others but he isn't feathering out as quickly. All the chicks (including the boys) have wings, tails, and many other feathers coming in. This guy barely has a tail and wings. The wing feathers are coming in a little crooked at the ends. Has anybody seen this before? If he were sickly I would expect him to be smaller than the rest. He is not only the largest boy but he is also the most energetic and goofy. (BTW, he happened to blink when I took the picture, he isn't hunched over looking ill!) Any thoughts? Is he sick or just special?