4m x 3m Omlet pen, cube, new auto door still boxed and coop light

[coco]

I have a broody hen and ths morning she is sneezing and preening herself a lot. She has been out free ranging this morning and seems fine in herself. I have checked her for mites and couldn't see anything but gave her a dusting with Diatom anyway. could it be an allergy to shavings as she is spending a lot of time sitting on them as she has thrown the straw out of the nest box.

[Space Chick]

Quite possibly an allergy.

 

To be on the safe side, I would listen to her chest to check she doesn't sound rattly, if she does a trip to the vets would be wise.