Link below to info on mites, so you know what to look for. I don't see any obvious signs in your pictures, but up close examining is required of the birds. Link has lots of pictures.
I'm going to guess that they don't feel safe on the roosts and that's why they are piling up in a corner. The tarps may be flapping, or something else, but they usually are more comfortable in something that feels more secure. Some birds will roost in trees if they are able, but that's usually higher off the ground, and larger breeds aren't going to be able to get up into a tree. They may be hurting each other while trying to pile on, it's hard to say, or something is reaching through the wire to get at them. Are you planning on building a coop? The easiest way would probably be to get a used shed, attach it to this run, and convert the inside with roosts and nest boxes. Long term, chain link is not very predator proof against opossum, raccoon, weasel, which can reach through and grab a bird, or squeeze through the openings, and if the top is only covered in tarp, it could be torn through by a fox, a fox will climb up fencing like it isn't there. Just things to consider, don't want you to suffer heartbreak from a predator attack.
https://the-chicken-chick.com/poultry-lice-and-mites-identification/
I'm going to guess that they don't feel safe on the roosts and that's why they are piling up in a corner. The tarps may be flapping, or something else, but they usually are more comfortable in something that feels more secure. Some birds will roost in trees if they are able, but that's usually higher off the ground, and larger breeds aren't going to be able to get up into a tree. They may be hurting each other while trying to pile on, it's hard to say, or something is reaching through the wire to get at them. Are you planning on building a coop? The easiest way would probably be to get a used shed, attach it to this run, and convert the inside with roosts and nest boxes. Long term, chain link is not very predator proof against opossum, raccoon, weasel, which can reach through and grab a bird, or squeeze through the openings, and if the top is only covered in tarp, it could be torn through by a fox, a fox will climb up fencing like it isn't there. Just things to consider, don't want you to suffer heartbreak from a predator attack.
https://the-chicken-chick.com/poultry-lice-and-mites-identification/
)the coop walls are chain link fence we added the chicken wire on the outside. We also added more roosting area and moved the roosters out to a different structure so there's more room and way less stress/fighting. Looks like we still have work to do. Thank you!! Hey, you know anything about respiratory issues? Our little Bantam just started wheezing overnight. I posted about it under whistling chicken? I can't see any obstruction. Most things I've read are indicating a possible respiratory illness and to try VetRX. Any thoughts/advice?
