Thank you all for your input. I need to read more about deep bedding, I think, and look into mixed wood chips. We'll probably stick to pine shavings in our brooder for now, since it's hard to come up with a more practical option!
We were bopping along just fine with our first little batch of chicks, in a brooder with pine shavings as bedding, when a co-worker sent me this article--
https://www.forloveoflivestock.com/blog/toxic-chicken-coop-pine-shavings
How much credence should we give it?
If this is true, and pine...