The lead shot eaten by wildlife are also frequently laying in a wet brackish environment that oxidizes the lead, making it more bioavailable.
Personally lead is way down my list of toxicity concerns in dealing with electronics, after things like cadmium plating, beryllium dust, glass fibers, and contact cleaners. Rather hazardous electronic cleaners like hexane, trichloroethylene, and bromopropane are still sold for the industry.