Back when I had an antique shop I bought "estates" I purchased a house full of old furniture about 25 years ago and in the drawers of the chifferobe I found the previous owner's "journals" Every time he went to town, bought anything, planted anything, or harvested or sold anything he wrote it down in his journal. There was an old mississippi trapping license for the 1933-34 season (December 1933 to January 1934) inside his 1934 journal and a hand written list of all the furs he sold February 1934 listed by species with the price the trapper received for each species of pelt.
By catching furs during the Depression, (and BTW in a state with poor quality fur) the old timer made more cash money in just two months of pinching toes with steel traps than he made producing 9 bales of cotton. He farmed an eleven acre cotton allotment and worked in the Mississippi heat all Spring, Summer, and Fall to produce these 9 bales of lint. In nature there is nothing more "sustainable" than the fur barer population, and nothing is so necessary to small flock free range chicken farming than a yearly check on coon, possum, skunk, fox, mink, coyote, lynx, weasel, and other varmint populations. This is why I feel that the Animal Rights lobby and Environmentalist shrill cries for “sustainable” agriculture is nothing but hot air, lies, and hokum.