1. Centre for Conservation ScienceRoyal Society for the Protection of Birds The Lodge, Potton Road Sandy SG19 2DL U.K.
2. UN Environment World Conservation Monitoring Centre (UNEP‐WCMC) 219 Huntingdon Road Cambridge CB3 0DL U.K.
3. BirdLife International David Attenborough Building, Pembroke Street Cambridge CB2 3QZ U.K.
4. Department of ZoologyUniversity of Cambridge Downing Street Cambridge CB2 3EJ U.K.
5. Centre for Macroecology, Evolution and Climate, Natural History MuseumUniversity of Copenhagen Copenhagen DK‐2100 Denmark
6. Department of Life SciencesNatural History Museum Cromwell Road London SW7 5BD U.K.
7. Centre for Biodiversity & Environment ResearchUniversity College London London WC1H 0AG U.K.