Just when I thought Hanna was safe from the dominant hen who had plucked off all her butt feathers, I notice a tumor protruding on her chest. Have you seen this on a chicken before? I had a pet rat that got a tumor like this on his side once. The vet told me to humanely euthanize him. It just got bigger and bigger. I suppose I will go out there one day and find her dead, but I just don't have the heart to speed her demise. What would you do? She was only a pullet when I got her in spring. She's not even a whole year old yet. But look at those beautiful eggs. So sad.