My six hens have been stomping on their roost for the past few nights. After doing some research, I was concerned we had mites, but I went into the coop tonight right at sunset and did a feather and vent check. As far as i could tell, there were none on them. I did see mosquitos just dive bombing their legs and feet though! I also saw a few (less than 10) tiny black bugs that looked like they had wings. When i crushed one, it had bright red blood inside. Any ideas on what those little bugs could be? Also, what do y'all use to keep mosquitos off your girls? I feel awful for them, they see miserable!!