1. Carla J. Dove, James F. Whatton and Christopher M. Milensky, Smithsonian Institution, Division of Birds, NHB E-600, MRC 116, P.O. Box 37012, Washington, DC 20013, USA, e-mails: , whattonj@si.edu, milenskyc@si.edu.
2. Will Boss, US Air Force Safety Center, 9700 G Avenue SE, Albuquerque, NM 87116, USA, e-mail: .
3. Houssein Rayaleh, Association Djibouti Nature, P.O. Box 3088, Djibouti, e-mail: .
4. Djama Goumaneh Awaleh, Gazi University, Turkey; and Ministère de l'environnement te de dèveloppement durable de Djibouti, Djibouti.