Our deer camp in Alma, WI requires the use of copper. Tiny lead particles can transfer into the meat if bones are struck by a lead bullet. We are thinking of children eating the venison along with the birds eating gut piles/carcasses.
I must agree, I’m not as concerned about birds as I’m concerned about my family. I’ve considered the switch to copper for a couple years. Might finally pull the trigger this year (pun intended).