Hi, I'm new here. I need some help. I have an adult hen (australorp) 2 years old.that was perfectly fine yesterday. I came home from work today and she was inside the coop gasping and making a wheezing sound. She stretches her neck up as she gasps for air. As I was checking her throats she bit me in my finger so hard that it bleed. I thought maybe she had something stuck in her throat, but I couldn't see anything. She's not eating or drinking right now. She just sits there and is wheezing and gasping. I have about 13 hens and she's the only one acting like this. Does anyone know what this could be? I'm really concerned about her.