Emphasis in Atmospheric Chemistry, Troposphere Trace Gasses
Current project: Environmental exposure of heavy metals in nonmigratory birds
We are measuring the amount of Lead (Pb), Silver (Ag), and Cadmium (Cd) in nonmigratory birds; pheasant, grouse, quail, and in particular the wild turkey. We currently have samples from South Dakota, Minnesota, as well as Wisconsin. Most birds use a gizzard to grind seeds, insects, and whatever else they might eat and therefore they require gravel in their gizzard as part of this digestion process. As a side effect of picking up gravel heavy metals are they also ingesting. What kind of exposure to heavy metals are the samplers of the environment exposed to? The lead, silver, and cadmium accumulates over the life of the bird in their bones and over the time frame of the growth in their new feathers.