Chicken making weird noise. Freaking me out.

[SuburbSpurs]

My black australorp is making a weird seal noise, it seems to be when she breaths because she can't stop making the noise. I caught her but I can't figure out what it is. Any ideas?

 

[Eggcessive]

It could be a sneeze. A video may help. If it is sneezing, that can be a symptom of dust in the coop or feed, or a symptom of infectious bronchitis or other respiratory disease.