Chickens are sneezing...

[19Chicks]

My chickens have been sneezing a good bit recently. One of my Brahmas sneeze more frequently than any others. Is this normal? If I need to cure the sneezing, what do I do?
Thanks!

 

[CMV]

Any irritants present? Like DE or a dirty coop?

Any other symptoms of a respiratory illness?

 

[CroChelle]

I've been wondering the same thing. My rooster keeps sneezing, but appears to be healthy otherwise. The coop is dusty though, so maybe that is it.