Charles Lindbergh was much taken with ecological and environmental issues in his later years, and all three of his surviving sons seem to have inherited his enthusiasm for nature, Jon, 44, is an oceanographer in Seattle. Land, 40, is, appropriately enough, a rancher in Montana, The most striking of the three, however, is Scott Lindbergh, 34, a preserver of unusual species in an unusual place:
The Dordogne Valley in southwest France is known for its richly forested hillsides, its spectacular rock formations, its prehistoric cave paintings and perhaps most fondly for its...