Maryland Department of Natural Resources
http://www.dnr.state.md.us/ 

Chestertown Wildlife Exhibition & Sale
http://chestertownwildlife.homestead.com/

Delta Waterfowl
www.deltawaterfowl.org

Ducks Unlimited
http://www.ducks.org/

Eastern Neck National Wildlife Refuge
http://www.fws.gov/northeast/easternneck/

US Fish & Wildlife Service
http://www.fws.gov/ 

Maryland Sportsmen's Association
http://www.marylandsportsmen.org/

Wood Duck Society
http://www.woodducksociety.com/

Maryland Waterfowlers Association
http://www.mdwfa.org/

National Wetlands Research Center
http://www.nwrc.usgs.gov/

National Wildlife Federation
www.nwf.org

USDA Natural Resource Conservation Service
http://www.nrcs.usda.gov/