Growing up in Illinois, I saw both, I'm thinking. Saw many a duckling, gosling, whatever baby swans are, taken down. We'd find them in drainage ditches, and yards. In the morning dew you'd see their wide trails going from the pond in our backyard to the lake across the way. I had a buddy who found a dead alligator snapper in his lake. It was a monster, I recall. When they cleaned up the animal they found a musket-ball inside, under the shell.