The hobby of observing and identifying wild birds.

• Recreational birdwatching.

观察并辨认野生鸟类的爱好。

• 休闲观鸟活动。

Present participle of bird: observing or identifying wild birds.

• Actively searching for birds in nature.

观察或辨认野生鸟类（进行时）。

• 在自然中主动寻找鸟类。

The catching or hunting of birds; fowling.

• Taking birds for food or sport.

捕捉或猎取鸟类；捕鸟。

• 为食物或娱乐而捕鸟。