time before death. The horny lining of the gizzard often shows no outward evidence of change. Gener- 
ally, however, a green or dark brown stain colors both the lining and gizzard contents. The horny pads 
may be uncommonly stiff, abnormally rough, and easily peeled. Ulcerated areas, each about as small 
as a match head to as large as a kernel of corn, penetrate to the soft underlining. 
Fig. 6. -- Two plucked mallards, one healthy when killed, one that died from lead poisoning. High weight 
losses are associated with severe cases of lead poisoning. The mallard shown at the right lost 1.1 
pounds (a decrease in weight from 2.4 pounds to 1.3 pounds) and died on the twenty-fourth day following 
a dose of two shot pellets. The mallard shown at the left was undosed and when sacrificed was at its 
normal weight of 2.6 pounds. 
In 44 per cent of the penned ducks dying from lead poisoning, the glandular stomach was impacted 
by food, fig. 7, indicating a failure of the gizzard to keep pace with even a lowered food intake. Other 
observations furnished additional evidence of reduced activity of the gizzard muscles. In some ducks, 
the gizzard is distended by undigested food. 
