The National Agricultural Library Digital Repository (NALDR) provides access to primarily historical USDA publications either digitized by NAL or through NAL’s partnerships with other institutions.
Our migrant shorebirds in southern South America United States Department of Agriculture
Based on field work conducted in Argentina and Uruguay from 1920 to 1921, this report describes wintering grounds of shorebirds and the changes caused by man through expansion of cattle grazing, drainage of marshes, and hunting.
(Added December 2008)