Something is attacking my Isa Brown hens at night

[welasharon]

Ivomec pour on is a systemic medicine. I wonder if that would knock it out. I am guessing you inspected them head to vent for any creepy crawlies. I cannot stand not knowing..it must be driving you nuts.
sharon

 

[Kelpiedog]

Thank,s Sharron,
I will try it out.