BRONZE-WINGED DUCK 
131 
London Zoological Society in 1881 (P. L. Sclater, 1881) and seems to have lived but 
eleven months (P. C. Mitchell, 1911). Mr. F. E. Blaauw saw two specimens in con- 
finement in a garden in Concepcion, Chile. 
The stomachs of the two which came in the Peters collection from Huanuluan in 
Rio Negro were kindly examined by the U.S. Biological Survey and the results are 
as follows. Both were from birds shot in mid-spring (October 20). In the first the 
percentage of animal matter was 10%, vegetable 90%, besides the usual gravel, etc. 
There were ground-up foliage and a few seeds of water-crowfoot {Batrachium) , 88 %; 
a few seeds of water-milfoil {Myriophyllum) and a rush {Scirpus americanus), 2%; 
remains of caddis larvae and Corixidae, 10%. The second stomach, which was also 
full, contained animal matter, 60%, vegetable 40% as follows. One seed of Pota- 
mogeton and foliage of the plant, 31%; numerous seeds of Myriophyllum, 5%; 14 
of Scirpus americanus, 1 of Batrachium and 1 unidentified, 4%. There were frag- 
ments of caddis larvae and cases and traces of other insects, 60%. 
