Short abstract from the book: The curlew sandpiper is a fairly common passage migrant in
the autumn but rarer in spring. In some autumns many juveniles visit Denmark.
In Denmark the first curlew sandpiper was ringed in
1951, with the majority ringed between 1950 and 1980. The
recovered birds were ringed in July–October, nearly all on
Amager. The recoveries indicate that the passage migrants are passing southern Scandinavia and the Baltic Sea (Norway,
Sweden, Poland, Latvia and Finland). The recoveries of birds
ringed in Denmark give no information about the autumn
migration from Denmark and further south. However, birds
ringed in the Netherlands (August) and Portugal (July) have
later been recovered in Denmark. In spring curlew sandpipers
ringed in Denmark have been recovered in Tunisia and Italy,
which indicates a spring migration through central Europe,
probably east of Denmark.
Read more about the species in the chapter from The Danish Bird Migration Atlashere