No Eagles

There is a lake near my home where two mature bald eagles have made their home for the winter. I've seen them sitting several times in a dead tree by the water but never in flight. Two days ago, however, one seemed to drop from nowhere and flew low over my car, and then disappeared beyond the woods. I went to the lake today hoping to see the eagles in the dead tree and to capture an image of the national symbol of freedom to bring here. They were nowhere to be seen but I'm glad I looked.