$20 for a single set?!?! That's not right. I got a lot of 25 for about $12. Let me find a site. BRB
Here it is: http://www.eggcartons.com/Home/Pinless-Peepers/PINLESS-P-10.html That's for a lot of 10.
I would also be having your friend split the cost.
Slap some pinless peepers on those birds. That's the "bits" that were mentioned. I prefer the plastic ones.
I am so sorry for your situation and losses. A disintegrated flock is an awful sight to behold. I had a similar flock issue last winter, but mine never got as severe as yours. I...