Here are some ideas: Many birds use their songs as a warning call to other birds ... The phrase “to sing like a linnet” was ...

Whether you live in the city or the countryside, the constant chorus of birds is a reminder of how much wildlife there is outside your window. Although the cast of characters depends on the time of ...

And their songs have been shaped by their environment ... Duetting is particularly common in birds that maintain year-round territories and it helps in maintaining contact between members of ...

The birds upped the quality of their songs, as they called to defend their territory and entice a mate. And while it might have seemed to human ears that bird song got louder, the sparrows ...