A Delta Waterfowl study has confirmed what veteran duck hunters have long suspected: harvests of many waterfowl are taking place significantly later in the year than in previous decades.
The Delta Duck Migration Study, commissioned by the Bipartisan Policy Center, was written by science director Dr. Frank Rohwer, Louisiana State University graduate student Bruce Davis and senior director of U.S. policy John Devney.
The study examined data from the annual Parts Collection Survey. The U.S. Fish and Wildlife Service has collected comprehensive harvest data from hunters since 1961.
"With few exceptions, harvest dates for mallards throughout...