Hi all, I have 3 batches of newly hatched chicks. One batch started the bad habit of eating pine shavings (1 week old today). Four out of ten of them have pasty butt. I have been removing the pastes daily. Tonight I put olive oil on their bums, too. I covered the pine shavings yesterday. I don't think it is anything else causing this... ie, they are in a brooder with a light and are not huddled on top of each other. There is space without heat for them to go if they are too hot. Water is changed twice a day. The other two batches of chicks are 4 days old and one day old. They are either too young to have this yet or aren't having the same problems as the older batch. I have seen the older chicks eating the pine shavings. I haven't seen the younger batches doing that. Other things I could try is probiotics, which I have not yet acquired and I have also read that grinding their food might help? Any other ideas? How long should this last? Thanks!