they dont move at all! and i havent noticed any growth on them at all, i usually just throw away the feather in case its smth i dont want around but i couldnt find anything about it anywhere, and its only on her wing feather too! i guessed maybe it could be she instinctively plucks out feathers...
one of my hens sometimes drops a wing feather and i noticed these things on it, ive treated her with an insecticide multiple times cuz i thought it was maybe that but no parasites i could find anywhere and nor on my other birds, does anyone know what they r?