1. Department of Zoology University of Cambridge Cambridge UK
2. Department of Integrative Biology University of Guelph Guelph Ontario Canada
3. Environment and Climate Change Canada Saskatoon Saskatchewan Canada
4. NERC Life Sciences Mass Spectrometry Facility Scottish Universities Environmental Research Centre East Kilbride UK
5. Department of Biology University of Western Ontario London Ontario Canada
6. Department of Biology Lund University Lund Sweden
7. Swiss Ornithological Institute Sempach Switzerland
8. DST‐NRF Centre of Excellence at the FitzPatrick Institute of African Ornithology University of Cape Town Cape Town South Africa