Cooperative Fish and Wildlife Research Units Program: Louisiana
Education, Research and Technical Assistance for Managing Our Natural Resources

Louisiana Project

Survival, habitat use, and movements of female dabbling ducks during winter.

August 2007 - May 2010


Participating Agencies

  • Ducks Unlimited SRO

This is a long-term, multi-faceted and multi-species study, investigating survival, habitat use and movements of wintering female dabbling ducks, and has regional and international components. The study was initiated on Northern Pintails and has focused on Mallards and Gadwall during the last 5 years. The overall goal of the study is to provide information useful for winter habitat and refuge management by states and Joint Ventures within the region. The Mallard studies employed VHF transmitters and provided data on birds wintering in TX, LA, AR, and MS, whereas the Gadwall study has both regional (LA, TX) and international components, given an additional objective of documenting spring migration corridors and breeding areas within the northern U.S. and Canada using satellite transmitters. Dr. Afton is the PI and lead 3 different teams of 1 M.S. student and 2-3 technicians each, capturing Mallards in southwest and northeast Louisiana and Gadwalls in southwest LA. The Mallard and Gadwall studies were funded by Ducks Unlimited, USFWS Region 2 through the Gulf Coast Joint Venture, Texas Parks and Wildlife, and Louisiana Department of Wildlife and Fisheries.

Theses and Dissertations Publication Date
Gray, J. M. 2010. Habitat Use, Movements, and Spring Migration Chronology and Corridors of Female Gadwalls that Winter along the Louisiana Gulf Coast. M.S. Thesis, Louisiana State University, Baton Rouge, LA. 63pp. May 2010