Anas boscas. January 2, 1909. Obtained a wing-tipped female in what I take to be ordinary winter plumage. January 6, 1909. Today a drake Mallard was received; it was in regular winter dress with green head, etc. March 18, 1909. Like my Mandarins, Pintails, and Green- wings Leaks, my Mallards now appear in high feather. When I go into the yard the drake emits and occasional quack of a rather soft and pleasing sound. The duck onlyutters her harsh quack when alarmed. March 21, 1909. It seems to me that the female is showing some mating tendency. Whenever she passes one of the Pintails she lowers her head to one side and bend of bobs it, making a low sound. This action appears similar to that of The female Green-winged Leaks already described. April 14, 1909.