My 6 month old chocolate English orp has been open mouth breathing for the last two days. It is constant, even when roosting at night (I thought I recorded a video last night from the coop cam but it didn't save) A little background... she started laying about a month ago, this last week she has been laying a soft shell off the roost then a regular pullet sized egg later in the day (I started her on calcium citrate yesterday), treats are few and far between, they eat kalmbach 20% flock maker with oyster/egg shell on the side, her vent looks normal, she eats, drinks and poops fine, everyone was wormed in January. No one else is doing this. She is the sweetest thing! Any help is greatly appreciated