Bui. 672, U. S. Dept. of Agriculture. 
Plate II. 
JW. 
d 
Fig. 1.— Pintail with the Duck Sickness. 
The eyes are affected, and the bird has difficulty in supporting the head. 
Fig. 2.— Cinnamon Teal Unable to Stand. 
The lower mandible hangs loosely and the -wings droop from the sides. 
