Abstract: In this study, the effects of a total solar eclipse, which was occurred in Elaz?? on August 11 1999, on sheep behaviours, were observed. For this purpose, 150 sheeps open shelter have been observed for six hour, from 11:00 am to 5:00 pm. All behaviours of sheep that were different than usual were recorded during observation. Sheeps started to show different behaviours including standing up, smelling the weather and watching around 30 minutes before solar eclipse. Total solar eclipse was occurred between 2:37 and 2:39 pm. During total solar eclipse, it was observed that they become very quiet did not move, turned their faces to the sun. During solar eclipse, sheep behaviour was obseved different than normal sunset darkness. Sheep might behave similar during earthquake disaster with solar eclipse.