1. Carla J. Dove, Smithsonian Institution, Division of Birds, NHB E-600, MRC 116, P.O. Box 37012, Washington, DC 20013, USA,.
2. Jacob Saucier, Smithsonian Institution, Division of Birds, NHB E-607a, MRC 116, P.O. Box 37012, Washington, DC 20013, USA,.
3. James F. Whatton, Smithsonian Institution, Division of Birds, NHB E-601, MRC 116, P.O. Box 37012, Washington, DC 20013, USA,.
4. Brian Schmidt, Smithsonian Institution, Division of Birds, NHB E-605, MRC 116, P.O. Box 37012, Washington, DC 20013,.
5. Houssein R. Roble, Environment and Sustainable Development Ministry of Housing, Urban Planning and Environment, BP 2091, Republic of Djibouti, Africa,