As long-time readers know, Ducks Unlimited is the official charity of Maggie's Farm. Read about them at their site.
It is very possible to be a conservationist without being a Greenie nutjob. We love the work that DU does to protect wildlife habitat in North America and Mexico. If conservation matters to you, and you are not afraid of guns, and want to support an organization (over 800,000 US members) that acts rather than talks and lobbys, consider getting involved with your local DU Chapter. DU now helps protect over 11 million acres of wildlife habitat.
DU's expertise in marsh restoration led to their being called in as consultants on the restoration of Iraq's famous marshes - Mesopotamia, probably the real Garden of Eden - drained by Saddam Hussein in his campaign to erase the cantakerous and independent Marsh Arabs.