I am brand new to chickens as of two days ago. I did tons of research and am loving them so far. I do have one issue that I haven't been able to find a remedy for. My female fayoumi chick (4 days old) is suddenly biting her own wing and squealing like it's causing her pain. She's also becoming very aggressive with the other chicks. She's pecking at them and grabbing onto their feathers until she pulls them out. Occassionally, she'll lay down and look like her breathing is labored. All other chicks are thriving and seem to be happy with the temperature. They have a branch and rock to climb on. She is not aggressive towards myself or my kids. I really don't want to separate her, but I'm at a loss. Is she bored?