Elize Y. X. Ng National University of Singapore, Department of Biological Sciences, 14 Science Drive 4, Singapore 117543, phone: +65-6516-2853 Singapore
Arya Y. Yue Department of Biological Sciences, Bryn Mawr College, 101 N Merion Ave, Bryn Mawr, PA 19010, United States of America
James A. Eaton Casa Indah 1, Persiaran Surian, Petaling Jaya, 47810, Malaysia
Chyi Yin Gwee Department of Biological Sciences, National University of Singapore, 16 Science Drive 4, 117558 Singapore
Bas van Balen Basilornis Consults, Muntendampad 15, 6835 BE Arnhem, Netherlands
Frank E. Rheindt Department of Biological Sciences, National University of Singapore, 16 Science Drive 4, 117558 Singapore