DUIN G VAN (1985) Actualities: Hen Harrier on sleepingareas. LIMOSA 58 (2): 78-78.

effect from the 1985/86 winter season in the Netherlands will begin counting Blue Harriers on their beds. A total of three counts organized (November, January and March). Each count, either Saturday or Hen Harrier Circus cyaneus Sunday, takes only 2 '/ 2 hours, while completing the data necessary to the telformulieren minimum can be limited. In the same weekend will also be in Britain, Flanders and Normandy be counted

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