After learning that the bird was in the area I finally found it at Villahøj, where we could enjoy it briefly before it took flight with a handful of Barnacles, but only to land further north close to Kalvebodstien. The photo is from this spot, and taken just as the birds got scared away by Thursday tourists. Disappeared afterward. Not sure of age.
Subspecies: [monotypic]
Adult and 2cy bird. Paler remiges and wing coverts with whitish tips of the latter are obvious whereas the rest of the plumage looks like the adult.
When seen like this, they are easy to spot, but could otherwise easily go unnoticed in the larger flocks of barnacle geese.