The Dawn Chorus at Muir Woods

Every morning, about forty minutes before sunrise, something remarkable happens in the ancient redwood groves of Muir Woods, California. A single bird — usually a Pacific wren — breaks the silence with a bright, cascading melody. Within seconds, another voice joins. Then another. Robins, thrushes, sparrows, warblers, each adding their own distinct song until the entire forest canopy thrums with sound.…