The musical detail would have impressed ... it can penetrate through or around objects. But how do birds produce such a complex variety of notes? How do they sing non-stop for minutes on end ...

There is nothing like spring. Just stand outside for a minute or two and you will hear what I mean. Birds are singing. From all corners of the prairies, forests and backyards the birds are singing ...

I am thirsty for this music. I lean nearer ... (Its vocal range is one of the highest-pitched of birds, singing up to one full octave above the top note of a piano keyboard.) My ears, though, are ...

This syrinx allows them to produce two different notes at the same time, which is why birds have such distinctive songs. In the UK most of the singing is done by male birds (unlike in the tropics ...

Alston’s singing mice have adapted to sing to express ... similar to those that manage human speech and songbirds’ musical notes, making this little rodent an intriguing subject for both ...