This 30 March 2016 video is about mallard ducklings. Mallards sometimes nest in unexpected places; like on a balcony of a house in this case.
The house owner did not mind, and had even provided a mattress for a soft landing for the ducklings. However, they did not use the mattress. The ducklings jumped a few meters down to a pebbly surface to follow their mother. All ducklings reached the water safely.
Miranda Langeslag from the Netherlands made this video.
This reminds me a bit of mandarin ducks, which often nest in trees. Mandarin ducklings then have to jump from the nest in the tree.
Dear Kitty. Some blog 
Beautiful! I’m glad they were none the worse for the hard landing! Thanks for sharing
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Yes, they are so lightweight that they would not easily be hurt (except if wind had blown them against a wall). The same goes for Egyptian and barnacle geese, whose goslings often have to jump from rocks or other heights.
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