January 2010 – vol. 103, issue 1, pp 60–61 This article presents some observations on the winter roosting behaviour of Hen Har- riers Circus cyaneus in northern England during the winters of 2006/07 and 2007/08. The 7-km2 study area of low-lying hills (100-235 m asl) is a mixture of bog, heath, conifer plantation, and rough and improved pasture. In total, seven Hen Harrier roosts were observed, which were used between 1st August and the end ... This article is only available to registered users.To read more, please log in or purchase a subscription.