On my way to Sacramento the other day I saw what I thought was a strange dark cloud over a field. As we got closer I saw that it was a mumuration of starlings. It pulled apart and formed many wonderful organic shapes that moved in and out of each other. We pulled over off the highway... were happy to see that others had too. Some photographing the event. It lasted and lasted, ever changing, each form having a mind of its own, forming and reforming. Breathtaking.