1. Department of Zoology; University of Venda; Private Bag X5050; Thohoyandou 0950 South Africa
2. Department of Integrative Biology and Evolution; Konrad Lorenz Institute for Ethology; University of Veterinary Medicine Vienna; Savoyenstr. 1a A-1160 Vienna Austria
3. Justus Liebig University Giessen; Department of Animal Ecology & Systematics; Heinrich-Buff-Ring 38 D-35392 Giessen Germany
4. Trace and Environmental DNA Laboratory; Department of Environment and Agriculture; Curtin University; Perth WA 6102 Australia
5. Ecogenics GmbH; Grabenstrasse 11a 8952 Zurich-Schlieren Switzerland
6. Department of Primary Industries, Parks, Water and Environment; GPO Box 44 Hobart Tas. 7001 Australia
7. Royal Society for the Protection of Birds (RSPB); The Lodge; Sandy Bedfordshire SG19 2DL UK
8. Section of Ornithology; Natural History Museum of Los Angeles County; 900 Exposition Boulevard Los Angeles CA 90007 USA
9. Feather Link Inc.; 1013 Westchester Way Cincinnati OH 45244 USA
10. School of Environmental Sciences; Charles Sturt University; PO Box 789 Albury NSW 2640 Australia
11. Department of Conservation Biology; Estación Biológica de Doñana (EBD-CSIC); Avda. Américo Vespucio s/n Seville 41092 Spain
12. British Antarctic Survey; Natural Environment Research Council; High Cross Madingley Road Cambridge CB3 0ET UK
13. Percy FitzPatrick Institute; DST/NRF Centre of Excellence; University of Cape Town; Rondebosch 7701 South Africa
14. Centre d'Etudes Biologiques de Chizé; UMR 7372 CNRS-Université de La Rochelle; 79360 Villiers-en-Bois France