Flocks that include multiple shorebird species stop to rest and feed along the Massachusetts coast as the birds migrate from their northern breeding grounds to their warmer winter homes. This photograph of a group of birds flying across a salt panne has four different shorebirds together. On the left are a Semipalmated Sandpiper (the smaller bird) and a White-rumped Sandpiper. A Semipalmated Plover is on the upper right. A Dunlin in the center rounds out the quartet.
