Owl

Let me shares with you a real story about my friend's experience of owl attacked at his BH a month ago. His farm located near the Palm Oil plantation. To prevent the owl, he installed a high power electric wire at the base of the entrance hole. I draw a picture below for easy illustration. Do you think his BH is safe from Owl attack?

The answer is no. Last month when he entered his BH, he saw some shit (bigger) not below to swiftlet on the floor and also a lot of bird feathers. He also noticed that some of this nests were cracked and fall on the floor. So he quickly checked his CCTV recorder. What he found out that the owl is very smart. Instead of landing on the base of the entrance hole, it cling on the "tweeter" for few minutes to observe the nesting area. After that then it flew in to his BH to eat those baby birds.

So, the next thing he did is to adjust the tweeters higher so that the owl do not have room to stand on the tweeter. Hope all of us learn from his experience.