Really rather lovely.* I was concerned his lightness of tone would become cool flippancy but needn't have worried. He's an engaging writer, arguing that for humans birdsong is at once a context (giving a sense of location in time and place) and an event. And I have some intriguing links to follow up. 😊
*Aside from the penultimate chapter (horrible cruelty) and the final one (how the raging anthropocene threatens to shut the birds up altogether).