Here's another reason cameras are better in the wilderness than rifles or rods.
Millions of pounds of lead used in hunting, fishing, and shooting sports wind up lost in the great outdoors every year, reports the USGS. Except they're not really lost. Only lost to the human hunters and fishers.
They are certainly not lost to the countless individuals of numerous species who eat the spent lead shot, the wayward bullets, the lost fishing sinkers, and the snagged the tackle. They are decidedly not lost to the wildlife that eats the dead and wounded animals who were shot, or who ate the lead.
Radiograph of immature bald eagle containing numerous lead shot in its digestive tract (Jacobson et al. 1977). (courtesy of Journal of the American Veterinary Medical Association)
According to a new technical review by The Wildlife Society, upland hunting fields could receive as much as 400,000 shots per acre. Individual shooting ranges might receive 23 tons of lead shot and bullets yearly. All outdoor shooting ranges in the US combined could receive more than 80,000 tons of lead annually.
Meanwhile, roughly 4,382 tons of lead fishing sinkers are sold in the US every year. No one knows how much of that is lost.
The report notes: Lead is a metal with no known beneficial role in biological systems.