I have posted and getting no response. I'm worried! My 6 month old goose has always had 2 large "fat rolls" down her legs to her knees. Well, today, she has no fat rool at all on the right leg and the normal fat roll on the left. What is this? Is this normal? I have been trying to search google all day. What is the underpart of a goose called? Those feathers that hang so low to the ground between their legs?