Calidris arenaria. August 13, 1911. During the first week of May I brought home four wounded Sanderlings, one of which is still living, wheat and bread being its main diet. It takes very kindly to worms. When my mother goes out to feed the chickens, the Sanderling always rums up to the edge of the aviary and utters a few plaintive little whistles, begging for bread. A few of the pale gray feathers of the winter plumage are beginning to appear among the scapulars and intercapulars. October 29, 1911. The winter plumage seems to be no further along than at last writing. Bird ate a good many insects and worms to-day. November 19, 1911. I think that the pale gray feathers are becoming more numerous on the back. Very tame, eating from hand. Whenever anyone approaches the aviary, the Sanderling gives one or two several short piping notes at intervals and runs up to the fence begging for food.