Semipalmated means half-webbed. The feet of Semipalmated Plovers, the bird pictured here, and Semipalmated Sandpipers have webs between the toes but it does not extend between the toes very far. It is relatively subtle, not like a duck or a goose. These small shorebirds move very fast. It was quite a challenge to keep them in the frame as they darted hither and thither in search of delicacies beneath the sand. This was taken on Salisbury Beach, north of Boston.