This 5 July 2016 video shows the (as far as is known) first ever young osprey hatched in the Netherlands, in Biesbosch national park. There may have been a second youngster which died, but that is not certain.
This 28 June 2016 shows the osprey nest in Biesbosch national park. It is the first osprey nest ever known in the Netherlands.
I saw the nest myself. On the video in my report about that, one can see indirectly at least one young osprey is present, as it defecates in a curve over the side of the nest.
In this new video, one can see a young bird for the first time. Like other videos, it was filmed at a distance of hundreds of meters, as people being closer to the nest might disturb the ospreys.
Because of an injured wing, this duck was unable to fly with the others on spring migration to her northern or eastern European nesting ground. Now, she is staying this summer in Biesbosch national park in the Netherlands.