Short abstract from the book: The hen harrier is a rare breeder in Denmark, breeding only
occasionally in southern Jutland. The species is a rather rare
winter visitor, found mainly in eastern Denmark.
The first hen harrier was ringed in 1929, with the highest
numbers ringed in the 1960s. The recovered birds were all
caught in traps outside the breeding season. Twenty-two hen
harriers ringed abroad have been found in Denmark. Most
of the birds have either been ringed or recovered in southern
or eastern Denmark. The recoveries of Danish and foreignringed birds show that the Danish winter population consists
not only of birds from Norway, Sweden and Finland but also
from Scotland. Two birds ringed in Denmark were later recovered in Belgium and Germany, both during the cold winters
of 1956 and 1985 respectively.
Read more about the species in the chapter from The Danish Bird Migration Atlashere