Really interesting. Would love to hear from others who have used these.
I've resorted to pinless peepers on several occasions. I really feel bad for the hens. I feel like they have trouble seeing to eat and it's forced a few hens into a hard ugly molt. But I will say that they do work and work instantly. Last week, I had a hen just go after a broody. She was using her feet to scratch and claw at her while she pecked at her. I was leaving to go out of town and couldn't isolate one or the other safely. I worry about them kicking over their water. So I put a peeper on the bully for three days till I returned and could move the broody to a dog crate to break her.
Once she wasn't broody, the bully is perfectly fine again. Go figure.
My point is, having something like this on hand, especially for us small back yard flock owners is SUPER handy.