Grey swans often appear in the bushes and grasses, and sometimes go to the ground to find some food, mainly eating some seeds and fruits, and sometimes fly to the farmland to eat some grains, etc., but during the breeding season , the food will change, mainly eat some insects. So, what's so special about the call of a grey swan bird?

The Call of the Grey Bird

Generally speaking, the cry is relatively clear. There are many kinds of calls, each of which represents a certain meaning. For example, when you contact your companions, you will make a clear sound. If you are in danger, you will make a call, and sometimes it will be long.