Margaret F. KinnairdYok Yok HadiprakarsaPreeda ThiensongrusameeWildlife Conservation Society, BogorMahidol University2018-07-242018-07-242003-07-01Ibis. Vol.145, No.3 (2003), 506-508001910192-s2.0-0042266854https://repository.li.mahidol.ac.th/handle/123456789/20630Mahidol UniversityAgricultural and Biological SciencesEnvironmental ScienceAerial jousting by Helmeted Hornbills Rhinoplax vigil: Observations from Indonesia and ThailandArticleSCOPUS10.1046/j.1474-919X.2003.00188.x