It might be just due to dust from the shavings...but pick them up and check out their eyes and nares (nostrils) for any kind of discharge. Other signs of illness are gasping or labored breathing, sitting around fluffed up all the time, soiled vent feathers, being lethargic and eating/drinking/poop changes. Observe them for a bit to see.

Enjoy your chicks! :) I have a chicken info site that might help, located here:

http://home.earthlink.net/~velvetsparrow/VSChick.htm

Velvet ~:>

Thanks. They have none of those things you listed. Other than sneezing, they appear to be fine. I will keep watching them of course. I hope it's just dust.

You might want to take a good sniff of the shavings. The light might be releasing some kind of fumes. Also check for an ammonia a smell.

I'm not smelling anything from the shavings at all really. An occasional chicken poo smell if they've done a fresh one, but nothing else. One of them just now sneezed while sitting on my shoulder though. But still, I'm not seeing any discharge or suspicious behavior. Is there anything I should do as a precaution?

Watch them like a hawk for signs of illness, weight loss and behaviour changes. Keep them warm and out of drafts to avoid chilling them, and give them lots of tidbits such as live mealworms to keep them as healthy as possible. :) I offer unflavored Pedialyte (get it in the baby aisle at the grocery store) to drink for sick birds, it boosts their electrolytes. You can also give it to your chicks, it helps birds stressed by shipping and/or new surroundings. Can't hurt!

Velvet ~:>