Ardea Official journal of the Netherlands Ornithologists' Union |
Lebret T. (1958) Baltsbewegingen van het Nonnetje, Mergus albellus L. ARDEA 46 (1-2): 75-79 |
Social display movements of the Smew (Mergus albellus) ?? are described. Numbers of the figures refer to numbers in the text. Comparable movements of other duck species are mentioned. |