Hi. I bought two baby chicks. They are about 2 1/2 weeks old now and I just start to notice that they are itching like crazy. The white one is getting thinning feathers from itching so much. I don't see any bugs on them. I've been using pine shavings for them, could this be causing them to itch? Or is this normal? Also, I've been trying to pick them up everyday to get them used to me but they don't seem to wanna be bothered with people. Does it take a long time for them to get used to people? questions questions.