A bird-world image-map system is a new geographical system with spatiotemporal and color analysis functions. This System is like a 'Multimedia Encyclopedia', which makes it possible for users to share comprehensive birds' knowledge, such as the name, habitat, migration and activity period of birds, by creating birds' database from users' input and fragment data on cyberspace and visualizing the datasets on a set of chronologically-ordered world-maps. Because of the rapid progress in multimedia, mobile and GIS technology, various kinds of information resources about natural environments of the real world can be accessed in a cyber space. In this situation, it is important to support users to acquire valuable knowledge that expresses user's fragmentary information about the real world and adequate information on the cyber space. In order to provide and collect birds' information in the world and create digital maps, this system realizes the functions for identifying a bird contained in a picture image input by a user through the global analysis of temporal, spatial and color information of images within a selected domain. In addition, this system makes it possible for users to share comprehensive birds' knowledge, such as the habitat, migration and the activity period of birds by creating birds' database from users' input and fragment data on cyberspace and visualizing the datasets on a set of chronologically-ordered world-maps. This system is also applicable for natural environment analysis by visual observation of ecological form, distribution, history and change of living-things, such as global habitats and migration.