My chicks are a week old. I've been putting paper towels over the pine shavings until they get used to the food. Every time I pull up the paper towels, thinking they are ready for the pine shavings, they go crazy and start eating all the little specks of pine shavings. I've tried putting the shavings on very thick but they always scratch it away so they can get to the bottom and eat the specks. Is this okay? They are also at the point now where they are starting to shred the paper towels so I don't know which is worse. Thanks!