McMahan, C.A.2010-02-152010-02-151968http://hdl.handle.net/1969.3/197863 p.An inventory of coastal waterfowl populations in 1967 by personnel of the U.S. Fish and Wildlife Service and the Texas Parks and Wildlife Department, showed a population of 970,583. Only 122,965 redhead ducks were counted, as compared to a population of 549,466 estimated by the writer in December 1966.migratory speciesabundanceecological distributionredhead ducksinventoriesaquatic birdsBook