Moonset with Flock of Birds

moonset and flock of birds
An excellent opportunity presented itself to me on Saturday morning while photographing the setting moon. Far in the distance, but near the moon, was a flock of more than a hundred birds. This picture shows the birds as they were approaching the moon. The birds were so far away I couldn't see what type they were but I do know it's one of the largest flocks I have seen in the nearby skies.