Abstract
In the field of biology, behavior analysis a valuable tool for observing the change and development of the brain and neural mechanism non-invasively. However, behavior analysis has enormous data processing because of lack in automatic tools for the measurement of behavioral data. Therefore, the purpose of this study is to develop the new motion capture system which enables us to improve processing a vast amount of tracking data about chicks behavior. Specifically, we propose automatic motion capture system obtaining the position and direction of chicks by using video movie from only WEB camera before and after fluttering of chicks.