One of my hens had to large hard cyst like boils on her side under her wing and the had scabs on them like they exposed or open and she had other smal ones on her body but they weren't opened. Then when we tried to open them (my aunts a vet so we had her do int) to see if it was like an infection she went into shock and died. And I just noticed my polish rooster has the same kind of small lumb on his head. What could this be?
