Talk about the loveliness of birds in this text.

The loveliness of birds is reflected in the following contents:

They are doing so well in Qi Xin, so happy! The water surface is expanding rapidly. From time to time, shouts of' Krupp-Krupp-Krupp' came from the lake, just like an exciting labor horn:' Brothers, come on! Qi Xin, come on!'

It seems that they obeyed someone's orders, and all the swans finished their work at the same time. They held their heads high, held their chests up, swam around on the water, preying on fish and shrimp, and cheered triumphantly from time to time: "Crewe-Klee-Klee!" "