Hi, my name is Amanda and I have a sick hen. She is a 7 month old black australorp. I noticed the other day that she was moving a little bit slower than the other chickens in my flock and that she was slightly hobbling like she hurt her foot so I made a note to keep an eye on her and bring her inside if it got worse but she seemed to get better. Today I noticed that she was slow moving and she let me pick her up and as I held her, I noticed that she was gasping for air. She stretches her neck out real far and it almost looks like something is stuck in her throat. She doesn't seem to be limping anymore. She just isn't being very active. She has been exhibiting the gasping symptoms just for today. None of my other birds have these symptoms. I've put her somewhere warm and comfortable and she occasionally gasps but for the most part is resting and hiding her head in her feathers. All my birds are free range so I haven't noticed if she has irregular poop but I am going to check her next bowel movement. I really don't have any idea what treatment to administer and I am looking for some help/advice. From what I've read gapeworm is rare in chickens so I don't think she has that. I think she possibly has a respiratory infection or some kind of infection. She has no other symptoms other than the gasping and recent lethargy. She is a very sweet chicken and I'm really worried about her. Any input/advice is greatly appreciated and I thank you for taking the time to respond to me.