Waarnemingen van Wespendieven Pernis apivorus in Haags groengebied

Between 18 (possibly 16, when birds were heard) and 28 August 2013, a number of Honey Buzzards was observed and photographed in a city park in the western Netherlands. At least two adult males were identified (dark and light ones, the dark one moulting its 2nd and 3rd rectrices left), and a rather dark juvenile, but no female(s). The males were calling on 16, 18 and 19 August, with some more observations on 23 and 25 August (although not always individually identified). A foraging bird was disturbed at a depredated nest of Vespula vulgaris on 28 August, which was the last observation in the area. Whether or not these birds had nested in the park, remained an enigma, but cannot be ruled out despite the lack of observations prior to 18 August. Strong migration was recorded in the eastern Netherlands on 25 and 26 August.