The bird nobody was watching

I joined Birding Bob's group in Central Park on Saturday morning. The Ramble was misty and cold. Everyone had their binoculars up, looking for warblers and rarer birds. I don't know much about birds. There was this little one walking along with us — hopping on the trail, pecking at the dirt, flying a few feet ahead and waiting. It did this for a good twenty minutes! At some point it found a string…