Korea is located in the midst of the eastern Asian and Australian migratory bird flight paths  which have been serving as an important habitat for over 50 million water birds, equivalent to about 250 populations. However, because of coastal land reclamation and development policies, the Korean wetlands have been rapidly decreasing . As birds migrating across national boundaries are at the top echelon of the food chain, the preservation and management of bird species requires a global effort.
Birds serve an important role as an indicator of the earth's environmental issues [3–5], pollution [6, 7], and habitat environment . As indicator species, birds require cooperative monitoring network with not only expert groups but the general public  as well. Through such cooperation, the construction of a bird information network has been actively carrying out in the world.
As an exemplary case, the Avian Knowledge Network (AKN)  is an outgrowth of voluntary participation of citizens to build databases for bird species and habitat information, thereby contributing to effective and efficient bird preservation and management. Recently, the knowledge associated with pre-existing knowledge management  have shifted their strategy which focused on technicality and efficiency before and this shift in strategy further developed into a two-way feedback structure as a knowledge network in the form of self-organization  and co-evolution  of knowledge, which in fact borrowed its concept from the ecological principles. In this sense, the AKN is striving to construct a bird knowledge network, a voluntary knowledge community  by occasioning the huge observational information supplied by birth watchers to be shared with ornithologists, conservation biologists, and land managers through the utility and real-time accessibility rendered possible by eBird .
Currently, the development of a biodiversity information system which can be shared, accessible, and utilized by on-line is underway by various institutions globally . This trend is attributable to the low costs incurred and the resulting high-efficiency for requisite research, collection, application, and publication of biodiversity information which in turn contributes to the preservation, sustainable use, and management of biodiversity resources [16, 17].
Recently, web environments, such as Web 2.0 which is defining characteristics with users' participation and data sharing, have emphasized to maximize the utility and accessibility of the vast number of bird observations made by recreational and professional bird watchers. There are some contributing factors to promote such web environment: the development of GPS and digital cameras, public awareness concerning sustainable society, public science, Flicker , Youtube , and personal media. Especially, since biodiversity is involved with global partnerships, the aforementioned web environment is perfectly in accord with the necessity for the development of biodiversity information system.
Based on this background, as a device for Korean bird diversity preservation and management, we developed KBIS to access and share the bird sightings and locations with birding community made by experts and non-experts.