When feeding yesterday afternoon I found the Mookie hen huddled at the side of the pen. Her head was down on her breast and her tail would dip with each breath. She was gone when I went out a 6am to check on her. Her mate is now acting like he is having breathing issues. The feathers on his neck are puffed out and he seems to be bobbing with each breath. I picked up Duramycin-10 and Oxytetracycline. I've never had illness issues and feeling terrible for them. Any suggestions?