April 15. The White crowned Sparrow which was heard singing at the S.W. corner of the Stadium on Feb.26, Mar.2, Apr.5 (and many times between) Sang also in the garden of the Fraternity House, on Bancroft-Predmont and along Predmont Ave to the N.W. corner of the Stadium. It always sang from a prominent perch at lip of a small Tree or on an electric wire and seemed not to be connected with any flock. - I supposed it was a breeding Muttall with a peculiar Song but it disappeared about April 15 when the Puget Sd. Sparrows (in flocks at bottom of canyon) disappeared after a few days of singing. So I suppose this was after all a Puget Sd. Sparrow instead of a Muttall with an individual song. The Song was certainly much more like that of Pugetensis.