This 19 July 2016 video shows a black-necked swan couple with youngsters. This is originally a South American species. However, Jacques Westerveen made this video near Kruisweg village in Groningen province in the Netherlands.
Swans are familiar and popular waterfowl, and while there are actually only seven species of swans worldwide, they are spread across five continents (no swans are found in Antarctica or Africa): here.