The BIGBY (Green Birding) group is for those who wish to share their experiences with "green" birding.
Green birding is birding done without the use of fossil fuels and/or the internal combustion engine. Green birders are self-propelled birders, e.g., walking, riding a bicycle, paddling a canoe or kayak, or using skis or snowshoes. A green birder may use public transportation to get to a birding site.
See http://groups.yahoo.com/group/bigbybirding/