Quote from the posted article:
$1:
So is the lead shot coming from the lake bottom, left over from the days before the lead shot ban?
Or are the swans collecting the poisonous pellets as they forage in the fields where lead shot is still legal to use?
I watched W5's documentary about it this week, and video reports on the current news. There have been over 150 dead swans found there just this winter. I watched the autopsies being performed on them and their gizzards were full of lead pellets that had been ground down to soft sludge preventing any other food to go through their systems. Basically they're starving to death. The documentary showed the swans dredging up lead pellets from the lake as well as eating them in the fields.
If you get a chance to watch the W5 documentary it's a real eye-opener. A very sad situation.