ACKNOWLEDGEMENTS
This research received funding from African Bird Club (Conservation Award), Leiden Conservation Foundation (African Fund for Cranes courtesy of the International Crane Foundation/Endangered Wildlife Trust Partnership) and benefited from activities of a CEPF-funded project to Crane Conservation Volunteers. The first author was granted an in-kind support of field equipment from IdeaWild (Denver, CO., USA), Werner Schröder (NABU, BirdLife Germany), Dr. Günter Nowald (Crane Information Centre, Germany) and Ted & Darcy Thousand (Baraboo, WI, USA). Dr. George Archibald and Betsy Didrickson (International Crane Foundation) availed selected literature. We are grateful to Kenya Wildlife Service for authorizing this research (Permit No. KWS/BRM/5001), and to the National Museums of Kenya and the University of Nairobi for its endorsement. We thank Dickens Odeny (NMK) for assistance with production of the study area map.