“I am that little robin That sits upon a tree I sing to you each morning But you don't know it’s me” As you make the first cries on the branches, you announce with a clear song that spring is here. The male thrush uses notes in his harmonious songs similar to mathematical ratios. How amazing! It reminds me of Walt Whitman’s poem about you. “Solitary the thrush, The hermit withdrawn to himself, avoiding the settlements, Sings by himself a song.” Yes, it is a Song Sparrow that is singing the first three notes of Beethoven’s Fifth Symphony. Your distinctive songs during the spring bring to mind E.B. White’s beloved children’s book “Charlotte’s Web,” where he wrote: “The song sparrow, who knows how brief and lovely life is, says, Sweet, sweet, sweet interlude; sweet, sweet, sweet interlude.” The most gifted birds are able to use their syringeal rings in the left and right branches to produce high and low frequency sounds simultaneously, along with different rhythms and volume. The famous American poet Emily Dickinson metaphorically compared hope to a strong-willed bird living within the human soul. “‘Hope’ is the thing with feathers - That perches in the soul - And sings the tune without the words - And never stops - at all –” Your sweet song amuses me, cute Northern Cardinal! The red crest on your head resembles a cardinal’s hat, which is how you received your name. What new songs did you learn last year, talented mockingbirds? Producing 300 unique phrases in a season is a piece of cake for you. You are truly a productive composer! It is said that each woodpecker species has its own tempo, frequency, and intensity of drumming. The speed at which you proceed is 18 taps per second! The unique songs of many different types of birds fuse together to create a joyous and harmonious symphony. Inconspicuously, spring has restored our planet to life. Your angelic voices not only please our ears and bring joy to the world, but they also remind us of the heavenly music within.