The black grouse is known for its beautiful feather color.

There were many waterfowls in the pond at the park.

Guano is very valuable as a fertilizer.

I heard the beautiful voice of a songbird in the park.

The Imperial Household Agency is an important institution that supports the Japanese Imperial Family.

The vice-chairman helped with the preparation of the meeting.

He missed school due to poor physical health.

He goes to the gym every day to train his longissimus muscle.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.

The longissimus capitis muscle is a part of the neck muscles, helping to pull the head back.