High densities are recorded in small-scale farmland, young deciduous forests and willow thickets. Very open farmland is avoided, whereas extensive mature forests are generally only inhabited along the edges. Hardly any changes in distribution since 1973-77. Numbers in deciduous forests remained stable since the 1970s (although with marked fluctuations on a more local scale, due to habitat changes), but in farmland and coastal dunes an increase was noted. About 120,000-150,000 bp in 1998-2000.
Hustings, F., Majoor, F.
- SOVON Vogelonderzoek Nederland 2002. Atlas van de Nederlandse broedvogels 1998-2000. Nederlandse Fauna 5: 1-584. Nationaal Natuurhistorisch Museum Naturalis, KNNV Uitgeverij & European Invertebrate Survey-Nederland, Leiden.