"I don't give a damn about endangered species." -Walter Williams
I don't either, but I have a suggestion for those who do...Start eating them. Well, not quite. If private ownership of endangered species is no longer prohibited, and people figure out that animals like the spotted owl are pretty tasty, there will be an incentive for people to farm them and keep the species alive. Does anyone expect cows or chickens to go extinct?
I find it interesting that environmentalists seem more concerned with the survival of currently living plants and animals rather than increasing their population.