Ok, so I posted on my impacted crop in my sf the other day. She was fine the next day. Well I have had 4 other chickens do the same thing (on different days). They make a honking sound like they are choked, breath a little funny (more mouth open, but not faster) and dont eat much. The next day they are normal again. I massaged the first two after Phoebe, but the last ones I didnt and they were fine the next day. Can chickens get a 24 hour cold like we can? It seems to be going through the whole flock, but then they are completely normal the next day. If it were food or something I would think the same ones would have the same issues again. (I have been feeding crumble instead of pellets, thought maybe that was the issue.) All the ones that do it do seem to have a little firmer crops. I hate to just ignore it because they have all been fine, but I am starting to be like, oh its so in so's turn, she will be fine tomorrow. If it is a bug of some sort, will they all catch it? It seems to be the 3-4 month old chicks getting it, so far none of the adults have. Edited to add: They have all had completely normal poop. And they fluff just slightly and sleep a little more, but they next day they are their same wild hyper teenager selves.