. The Canadian field-naturalist. 1999 Burnett: Chapter 3: Working with Birds 47 if the birds are to arrive at their nesting grounds in good enough physical condition to breed successful- ly. The conclusion constituted a powerful argument in favour of protecting key areas along the entire length of the migration route of each species. By the early 1980s, shorebird studies in the upper Bay of Fundy were providing corroboration of this logic. Peter W. Hicklin, a CWS biologist based in the Sackville, New Brunswick, office, spent whole seasons on the mudflats of Grande Anse and the Minas Basin, obs
. The Canadian field-naturalist. 1999 Burnett: Chapter 3: Working with Birds 47 if the birds are to arrive at their nesting grounds in good enough physical condition to breed successful- ly. The conclusion constituted a powerful argument in favour of protecting key areas along the entire length of the migration route of each species. By the early 1980s, shorebird studies in the upper Bay of Fundy were providing corroboration of this logic. Peter W. Hicklin, a CWS biologist based in the Sackville, New Brunswick, office, spent whole seasons on the mudflats of Grande Anse and the Minas Basin, observing the foraging sites and inver- tebrate prey selection of the Semipalmated Sandpiper. It was evident that the two- to three-week sojourn of these southbound birds was as vital to their successful, nonstop migration to Suriname as the Iceland stopover was to northbound birds en route from Europe to Ellesmere Island. Growing awareness of the significance of key locations such as these led Morrison to wonder if there were equally sensitive locations in the South American wintering grounds of Canadian breeding shorebirds. The recently initiated Latin American Program of CWS provided a context in which these questions could be asked. The Latin American Program was established in 1980 to promote the conservation of birds that migrate between Canada and Latin America. It was coordinated during its early years by lola Price, and latterly by Colleen Hyslop.^' Its objectives included the study of distrib- ution and abundance of shared bird populations, the assessment of habitat requirements for migratory birds at stopover and wintering areas, and the miti- gation of threats to birds and their habitats, especial- ly when caused by human activity.^^ The Latin American Program provided funding for Morrison and R. K. (Ken) Ross to map the win- tering locations of Canadian summer breeding species. Between 1981 and 1986, they flew over nearly all areas of the South American coastline that
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