well hidden but noisy

It's a glorious crisp morning that promises not to get too hot this afternoon.  So I donned my jeans and long sleeved tee shirt and scouted for fall colors on the morning walk. I did not find many leaves that had turned, but this bright green tree was atwitter with birds that I could not see. It was only after this one Goldfinch flew to a different branch that I spotted her. Even knowing what I was looking for, I could not pick out any of the others.