I have been noticing that a few of my hens are taking dust baths non-stop. I have checked them for mites and I don't see anything. I am not sure if this is related but in the last two days I now have at least one hen that is sneezing often. She is alert, bright eyed, eating and acting well except for the sneezing. Unfortunately I don't know the leg number of the ones that are having all-day dust baths so I don't know if there is a relationship between the dust baths and sneezing (inhaled too much dust?) or not.
I haven't had any issues with my flocks in the last 10 years. Back then I would treat my flock with Terramycin but these days I am worried about over use of antibiotics. I also don't like losing 2+ weeks of egg production.