Well I noticed one of my chocolate scovie hens has a VERY swollen head! Its not just swollen in one spot, its the whole head! About the size between a baseball and softball. I feel so bad for her! I mean she doesnt seem stressed by it and is eating and drinking normally, but still! Its huge! I had a friend over at the time who works at a vet clinic and he says it looks like a bee sting or a snake bite - but i didnt find any puncture wounds.