Author Affiliations +
Knud Falk,1,* Carsten Egevang Pedersen,2 Kaj Kampp3
1aOrnis Consult Limited, Vesterbrogade 140A2, DK-1620 Copenhagen V, Denmark
2bInstitute of Population Biology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhage
3cZoological Museum, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark
*falk@ornisconsult.dk