I have 8 chickens. Today I noticed one making a weird noise. She has a very nervous personality in general. Many of her sisters have started laying for the season in the last few weeks and I thought she was due for her first egg which for her is always a big nervous squawking production. However, I noticed the noise was related to her breathing. I took her inside and listened with a stethoscope and found she was in fact wheezing. I put her in a dog kennel in our mud room and placed a blanket over it to calm her and the wheezing slowed with her breathing, but persisted with each breath. I purchased from vetrx and followed the instructions and she drank some of the mixture. I dabbed it on her head and nostrils. I didn’t really notice a difference after a few hours. She was sleeping but still wheezing. We took a small flashlight and looking in her throat for worms or obstruction but found nothing obstructing her breathing. She eats normal, drinks a little and poop looks normal. My boyfriend turned the lights down to keep her calm and placed a ziplock bag over her head with a hole cut out of one side and gave her a puff of albuterol. Her wheezing has since stopped. Seems she either has a respiratory infection or allergy that is constricting her airway. Could it be their bedding? I purchased what I thought was the normal bedding they use but noticed it smelled piney. I double checked and the brand states it’s fir. None of the other girls are reacting. I only supplemented the bedding and added a little bit and this was two weeks prior to any symptoms staring with her.