One of the four main islands of the large Indo-Malayan archipelago is a Borneo located along Sumatra, Java and Sulawesi. According to Das (2006), Borneo is located between the coordinates 040 S and 070 N and 109 and 1190 E. With an area of ​​approximately 743,380 km2, the third largest tropical island land area in the world was covered by Borneo (Darison and Fook, 2001). The largest and most familiar vertebrate groups are birds with approximately 9672 species known worldwide (MacKinnon, 1991). MacKinnon and Phillipps (1993), state that Borneo is home to 66% of the region's resident land birds, or 358 species. Due to adaptation to various ways of life, there are many families of birds that exhibit colorful and bizarre diversity. Tuen and Darub (1999) found that birds depend on resources to maintain peatland forest productivity and that many understory birds perform important ecological functions as predators of prey, seed dispersers, and pollinators (Peh, et. al., 2005). In Borneo, the main forest formation is peat forest and is an important reservoir for maintaining biodiversity (Fatimah and Hill, 2006). MacKinnon and Phillipps (1993) highlighted that peatlands are a valuable and threatened habitat that supports a specialized subset of lowland forest avian fauna. From previous research by Tuen and Darub (1999), they conclude that air quality and habitat structures influenced the abundance and diversity of understory birds. The question of this research is how habitat fragmentation influences the distribution and abundance of bird species on the UNIMAS campus. Research by Catherine and John (2001) suggests that large blocks of forest should be conserved through bird management in a fragmented forest. ...... half of the sheet ...... Dental Conservation, UNIMAS, pp 129-136.Ridzuan, M. (2006). Kajian terhadap Burung-burung of Kampus UNIMAS, Kota Samarahan, Sarawak. Faculty of Resource Science and Technology, UNIMAS. pp 2-15. Unpublished.Smythies, B.E. (1999). The birds of Borneo. Natural History Publications (Borneo). Kota Kinabalu, pp 1-21. Sodhi, N. S. (2002). The effect of food supply on forest birds of Southeast Asia. Ornithological Science 1: 89-93. Tuen, A. A., & Darub, A. W. (1999). The diversity and abundance of understory birds in a Sarawak peatland forest. Malayan Nature Journal 53(4): 287-294. Waltert, M., Mardiastuti, A., & Michael, M. (2005). Effect of deforestation and forest modification on understory birds in Central Sulawesi, Indonesia. Birds ConservationInternational 15: 257-273.Zar, J. H. (1996). Biostatic Analysis, Third Edition. Prentice Hall, New Jersey.