PLATE II. 



Two Baldpates attracted by tame Mallards on Leverett Pond, Boston. 

 (Photograph by W. Charlesworth Levey.) 



PLATE 111. — CANVAS-BACK AND BALDPATE. 



Attracted by tame Mallards on Leverett Pond, Boston. The pond is 

 surrounded by public streets and buildings. (Photograph by 

 W. Charlesworth Levey.) (See page 57 1.) 



