白鳥

白鳥

Swan.

Here, '白鳥' refers to the animal, the swan, described as being present in the garden.

庭に白鳥が一羽いました。

There was one swan in the garden.

In this sentence, '白鳥' is used to refer collectively to swans inhabiting the lake, indicating their habitual activity.

湖の白鳥たちは一日のほとんどを泳ぎながら過ごします。

The swans in the lake spend most of their day swimming.

Here, '白鳥' explicitly describes the individual swan as it performs an action on the surface of the lake.

白鳥が静かな湖面で羽を広げています。

The swan is spreading its wings on the calm lake surface.