Lamprosessa sponsa. March 25, 1911. Obtained two by exchange from R. M. Barnes, Lacon, Illinois. Both are pinioned birds, but in good feather. The drake has a very soft musical squeal, which he utters when alarmed or concerned or when calling to his mate. The crest is usually lifted slightly at the same time. The duck has a peculiar short squawk, much more musical than that of the female Man- darin. She also has the habit of jerking her tail upwards and also of throwing her head suddenly backward. The drake also carries his tail more elevated than the Mandarin. April 7, 1911. When excited the drake raises his tail. I have once or twice observed the pair copulating, their actions being similar to those of the mandarins. Several times they have been observed examining an old tree stump which I have in the yard, evidently with a view to nesting.