From childhood to adulthood, the teacher's description is that birds sing every day. Birds sing very beautifully. Why do you describe them like this? Can birds sing?
To be precise, birds are not singing, they are singing. So what is the purpose of the birds singing?
Bird song is actually the 'language' for communication between birds, and it is a way for birds to transmit information. Birds are particularly active at dawn and dusk, when they announce their territory to other birds, warning them not to approach or invade at will. During breeding season, male birds often sing incessantly, some to demonstrate to male companions and fight for territory, while others express their love to females to attract their attention and love.
Therefore, in addition to the bright feathers, singing is often a way for birds to show off their courtship. Studies have shown that the males who sing loud and sing more songs have the advantages of high hormone level, strong immunity and good physical quality. They are more likely to be favored by females, so as to obtain the right of mating and realize the purpose of lineage. With such benefits, no wonder birds sing so happily.