Two worries here. One it is sharp might cut babies up and two they might get tangled up in it. It is not at all abosbent so you would have a real messs in no time. Better off with tradition wood pellets or shavings.
I have been using a 50-50 mix of shredded office paper (can't beat free) and pine shavings. Seems to be working fine. It extends the life of the wood shavings, and the chickens seem to like playing in it. Mine were about 7 weeks old when I started adding the shredded paper. Until then I used straight pine shavings. They all thought they were getting a treat the first time I added it in, and they ate quite a lot of it, but the novelty quickly wore off, and they leave it alone now. That was almost 3 weeks ago, and they're all still standing, so I suppose eating it didn't harm them. hahaha.
Thank you for your experiences and thoughts on this subject. Our chicks are 5 days old and doing well. although we have pine shavings, I was shredding a document at work a few days ago and saw all that paper waiting to be recycled. Hmmm.... I can't help myself, I love to put things to good use. I might mix it with the shavings to strech it out.