Black Swan

Most unusual, I think I need to do some searching on the subject. You've got me thinking now. :-)

Not a Zoo, just water channels. White swans are common over here, but this is the first time I see these ones. In particular, three of them.

The legs and feet are an unusual colour to.

I thought Black Swans were only in Australia and New Zealand, unless in a Zoo. Is this one in a Zoo? And if not are they also native to Holland??