As the days grow longer in spring, chickadees start singing a different tune. Besides the familiar chickadee-dee call, we now hear a whistled “hey, sweetie,” often answered by another chickadee: “Hey, sweetie! Hey, sweetie!” Soon a cardinal takes up the theme, “Come here, come here,” and later a bluebird, back from migration, joins in the chorus: “Ain’t I pretty!” By May, the orchestra, in full swing, fills the dawn with a symphony of birdsong. Why do birds sing so much in the spring? Why make noise that could betray your presence to predators? What role does birdsong play in the annual cycle of a bird’s life, to be worth so much energy and risk?
Many birds communicate with sounds. Ducks quack, geese honk, loons yodel, and songbirds sing. Continue reading Songbird Songs – Background