The beginning of spring is in the air on this exceptionally warm weekend. The sun pushing through the bare tree branches rediscovering her strength. Children are running up and down the path, someone is sitting on the platforms, playing a portable radio. But most of all the birds fill the space. Along every part of the walk there is bird song, chirping and cheeping. They reign the air in every way, marking their presence, their habitat with sound waves and wing beats. Fluffing their feathers in the sun.