I understand that the Mute Swan is an introduced species and can be aggressive about evicting native species. Granting that, they are lovely to watch in flight. This pair was exercising their wings and encouraging their four fledglings to do the same.
I understand that the correct word for young swans is cygnets. Nonetheless, since young ducks are called ducklings and young geese are called goslings, I often think of young swans as swanlings.
Here are four Mute Swan swanlings with their parents. It is interesting that three of them are grey morphs. It was also interesting that they did not move away when a companion and I appeared from behind a screen of phragmites.
I came across this juvenile Mute Swan during a walk. It hissed so I maintained a respectful distance while wondering if it was in distress, being as it was about 100 meters from the pond where I previously saw it many times. It may have tired while trying out its wings.
I went past the spot a while later and it was gone so I assume it found its way to a more suitable habitat.