Dont be a cheapskate...save an Eagle..use copper ammo when hunting...

[peejman]

Good to know that my personal experience, and the experience of several people I know is pure unadulterated bs. 

People and birds have very different physiology, hence different tolerance and reaction to lead poisoning.  Given that your average hawk weighs 3 lbs or less, it's reasonable to assume the bird might be fractionally more sensitive to lead than a human based simply on body weight.  

Yes, we nearly hunted bison to extinction.  Numbers of the vast majority of animals plummeted during that time as well.  But let's not learn from any of that if it's inconvenient.  

Most raptors don't swallow rocks, they're able to digest the soft parts and then cast (throw up) a pellet of the indigestible parts (fur, bones, etc.). Swallowing rocks is much more common in birds that eat grass and bugs and hence spend much more time on the ground.