My chicken is breathing through their mouth and it sounds like a respiratory issue. I currently have her separated with fresh food and water outside on my balcony. There is a scab looking bump on her crest with a green dot (maybe infected) so I’m not sure if this is the cause. I didn’t catch it before since it kind of blends into the crest and didn’t notice until I saw her mouth breathing and took a closer look. I’m not sure of the cause but it could have been made by my Juvenile rooster who is getting big, or a fight, or maybe the breathing problems are unrelated? She seems fine if I stay back from the cage, but if I approach she gets anxious and breathes heavily. Unfortunately she will have to stick it out until I get home from work and can take her to the vet.