Bewick's swan (Cygnus columbianus bewickii), 2010-07-24

Beautiful photo, well done ! But I think that it's a whooper swan (Cygnus cygnus)
Here is a key to identify both species : Bewick's and Whooper Swans - BirdGuides

@Clem Thank you for you comment about the photo. According to Zootierliste Burgers' Zoo never kept Cygnus cygnus. I also remember that they had quite small swans, smaller than the whooper swans I've seen. So I am fairly it was actually a bewickii.

I also realized I made a mistake in the title (probably forgot to change something I copied) - the year of this photo should be 2008, not 2010. The date under the information tab is correct. Unfortunately I cannot change the title anymore, so I'm sorry for this mistake.