Hey everyone. About 5 months back we got 4 back yard hens for egg laying. Been having a great time so far. I was outside playing with the girls today when I noticed these grey tiny tiny bugs jumping and crawling around the back patio. As I started to look further I found more and more and more. Everywhere! When I grabbed a handful of the barkdust they came out in heaves. They don't look like mites and they jump almost like a flea. I treated the entire backyard with permethrin about 2 months back because we thought they had mites but they didnt. Anyways hopefully you guys can help me narrow this down. It is about to get cold here so my guess is they will die but I need them gone.