Mother and ......?

I first saw this gosling on April 28th when it was just a few days old. There are now many youngsters belonging to Greylag and Canada Geese but this 'teenager' is the oldest of the bunch. The adult feathers are beginning to appear and replace the downy ones. 

The mum did hatch two goslings but sadly one was taken in the early days.
I hope the white goose has a bigger family next year.