Hen harrier : hunting and teritorial behaviour in winter /
Dobler, Gerold,author.
The number of Hen Harrier (Circus cyaneus) breeding pairs in Germany has decreased from about 50 pairs in 2011-2013 to less than 10 pairs in 2021, becoming the rarest raptor in Germany. Nonetheless a substantial but fluctuating number of several hundred birds still spend the winter in open, mostly agricultural areas.
Supplement received with: British birds, Vol. 114, no. 12 (December 2020).
Includes bibliographical references.
Hunting behaviour -- Intraspecific territorial behaviour -- Interspecific competition and territoriality.
The number of Hen Harrier (Circus cyaneus) breeding pairs in Germany has decreased from about 50 pairs in 2011-2013 to less than 10 pairs in 2021, becoming the rarest raptor in Germany. Nonetheless a substantial but fluctuating number of several hundred birds still spend the winter in open, mostly agricultural areas.
Hawks.
Hen harrier.
Circus cyaneus.