How Birds Make Sounds
How Exactly Do They Make Notes?
One of the joys of walking through a forest is listening to bird songs. It's like meeting old friends when you can hear a song and know exactly what type of bird is singing. Have you ever wondered exactly how birds make sounds and notes? I've always been fascinated by this because there are some birds that can sing more than one note at a time. This is especially true of birds in the thrush family; and my favorite bird songs are those made by the wood thrush (hylocichla mustelina). Check out this video of a wood thrush singing. Close your eyes and see if you can hear the multiple notes that it makes at the same time.