Optical Illusion: Find the hidden owl in the picture in 10 seconds!

In the picture above, an empty building is shown to the viewers. Behind the building, there is a stream of water going.  

The building is home to an owl that has hidden itself. Readers are given 10 seconds to find the owl or other animal.   

It will be a good test of how well you can see. Now is your time! Carefully look at the picture.  

The owl will only be easy to spot for people who really pay attention. Have you seen it? Carefully look over every part of the picture.  

Do not look anymore! People who have seen the owl are lucky to have very good eyes.  

Please see the answer above if some of you still can't find it.  

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Optical Illusion Visual Skill Test: Can you spot 73 among 78s in 4 seconds?