Why are there birds flying around Datong Drum Tower?

Because birds have to live under the eaves, they can shelter from the wind and rain and come in and out easily. The Bell and Drum Tower is an ancient building with eaves suitable for birds to nest, and then they nest there from generation to generation.

In other parts of Xi 'an, there are few wooden houses, so there is no place suitable for birds to nest. They will concentrate on playing and nesting near the bell tower, looking for love.