Went outside a little bit ago to see our Blue Swedish girl standing off on her own with one droopy wing. She kept pulling it up and tucking it in, then it would droop back down with the long outside feathers touching the ground. i got close to her to see if i could see any injury, but did not see anything. Now she's up sleeping on the porch. We don't have a drake, so damage could not have come from mating. She was fine yesterday and i didn't observe anything traumatic happening between then and now. Any ideas what might cause this? And any suggestions on what to check for when i do pick her up to examine her?