At the end of August I start a collaboration with Dr. Reuven Yosef (Israël) at the Naturalis Biodiversity Museum, Leiden. The BCP (Black Code Project) will be the starting point of this collaboration. With the method Ptilochronology we will research wether there is a connection between the ‘fitness’ and the symmetry (or a symmetry) of the tail patterns.

Dr. Reuven Yosef is Professor at the Ben-Gurion University of the Negev, Department of Life Science.. He also was the Director of the International Birding & Research Center in Eilat, Israël.