THE AUK, VOL. 73 PLATE 19 PAIR OF BRAZILIAN MERGANSERS AT RESTING PLACE IN FRONT OF THE NST TREE, AFTER FEEDING IN THE RAPIDS. Note shortened crest of the female. Photographs by the author.
ThE Aur:, VOL. 73 PLATE 20 THE DOWNY YOUNG O1 THE BRAZILIAN MIRGANSER (Mergus octosetaceus), This species lacks the rufous on the sides of the head characteristic of downy young of the North American mergansers. Wash drawing by William A. Lunk.