Animal Sciences Commons^™

Lead Shot In Some Spring Migrant Ducks, Robert L. Jessen, Dwain W. Warner, Francis A. Spurrell, John P. Lindmeier, Bertin W. Anderson

Journal of the Minnesota Academy of Science

The incidence of lead shot in l ,687 lesser scaup (Athya affinis) and 416 ring-necked ducks (Athya collaris) in spring migration in Minnesota and the implications as related to the bird population and hunting harvest the preceding fall are considered in this study. The ducks, which were examined for shot by photofluorographic radiography had died as a result of oil pollution on the Mississippi River in the vicinity of Red Wing in the spring of 1963. The birds were separated into two age groups and by sex. Yearling lesser scaup had a body shat incidence (proportion of birds containing shot) …