1. Division of Physics and
Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
2. Edward Grey Institute
of Field Ornithology, Department of Zoology, University of Oxford, South Parks Road, Oxford, OX1 3PS, United Kingdom
3. CSIRO Ecosystem Sciences, GPO Box 1700, Canberra, Australian Capital Territory 2601, Australia
4. Advanced Photon
Source, Argonne National Laboratory, Argonne, Illinois 60439, United States