Roepende Slechtvalken Falco peregrinus in hun winterkwartier

In addition to an earlier observation (De Takkeling 12: 87-88, 2004) two more accounts of Peregrines calling in their wintering quarters are given, i.e. on 16 August 2003 (presumed female calling for 15 minutes) and on 11 February 2004 (male and female calling, talon-grippling, aerial display). Several other observations were traced in the literature, showing that vocal activities in winter are apparently scarce.