Feet seem to grow first, like slick black oversized swim fins. The adolescent brood of 11 can now fly and have started chasing each other and attacking. The four parents seem to be booting them out. Meanwhile the babies are staying in tight clutches (of five and of six) on the periphery. The parents are doing a lot of hissing at threats such as alien geese, ducks, people, dogs. Possibly the floods of the past week have them as tense as all the rest of us are.