I, too, would appreciate some enlightenment. I see that this was your first post on crappie.com, so I assume this topic must be important to you. I've only been fishing for about 35 years and haven't seen any of the aforementioned birds dead on or at the water. I have seen dead ducks that have been shot, so maybe that constitutes lead poisoning? You must have had the opportunity to be present at a necropsy at which lead poisoning was determined to be the cause of death, otherwise, how could you know by looks of a dead bird?
I'm looking forward to further enlightenment . . . . . .
Vonna
Yes, I fish like a girl. If you tried a little harder, you could too!!