What are the symbolic meanings of bats and red-crowned cranes in China?

The red-crowned crane symbolizes auspiciousness, dignity and longevity, and was also called "crane" in ancient times. NPC representative suggested that the red-crowned crane should be designated as the national bird.

Bats symbolize "happiness". People usually like to use five bats to form patterns and decorate the facade, which means "five blessings". There is a bright red bat pattern on my security door.

Just as people in China like to carve Chinese cabbage with jade carving, they take all kinds of wealth from it, which means to gain luck.