Anak PattanaviboolPhilip DeardenUtis KutintaraMahidol UniversityUniversity of VictoriaKasetsart University2018-07-242018-07-242004-12-01Bird Conservation International. Vol.14, No.SPEC. ISS. (2004)095927092-s2.0-23744504200https://repository.li.mahidol.ac.th/handle/20.500.14594/21059We surveyed birds in two remnant patches of montane evergreen forest landscapes differing in intensity of habitat fragmentation, land use patterns and development. Present landscape configurations in Mae Tuen and Om Koi show that both became heavily fragmented (Table 1, see also Figure 1) between 1954 and 1996. The low abundance at Om Koi of large frugivores, such as Brown Hornbills Ptilolaemus tickelli and Great Hornbills Buceros bicornis, and their lack at Mae Tuen, are probably effects of prolonged fragmentation. © BirdLife International 2004.Mahidol UniversityAgricultural and Biological SciencesEnvironmental ScienceArticleSCOPUS10.1017/S0959270905000195