I snapped this photo of a seagull being very immature, because it reminded me of immature bald eagles I used to see in BC, Canada. Several people have told me that the immature ones are the brown ones, that their head feathers become white later. Rrrriiiiiiiiiight. When they sit in a tree and try to drop sticks on people’s heads, then blow raspberries at anyone who chastizes them, THAT’s immature. Or if two eagles are sitting together laughing endlessly as they take turns making fart noises, THAT is immature. However, I believe that every one of those eagles would rather be pulled underwater by a fish, than be seen dressed like this immature seagull.