Sneezing

[kdwag]

My chicks are 4 1/2 weeks old and have been very healthy. We are having a warm day today, so I took them out to their run for a little while-it was their first outing. I noticed 2 of them were sneezing on occasion-- Is this a beginning sign of an illness or something associated with their first outing? They otherwise are eating, drinking just fine and eyes are clear.

 

[Trishkabob]

I am no expert but asked a similar question when we had younger girls. We were told by several BYC-ers that we should check the bedding for excessive dust, moisture, etc.
If all that is ok then they probably just sneeze for the same reasons we do: occasional nasal irritation. Our hens sneeze now and then but are otherwise healthy. If yours have no discharge from nostrils or other odd symptoms, they are likely fine.