Grey Color Is Not Recommended In Your Roving or Tunnel Areas !!!

"Pak Harry, after painting the roving area from white to grey the birds number dropped drastically.  Do you think there is a relationship between colors and swiftlet?"

I was very skeptical about the effect of color to those birds.

All these while many people believed that birds are color blind but I don't think so.

What will happen if you choose the wrong color for your BH?

The most critical will be the areas where the birds will enter the house especially the roof, the monkey house area, the tunnel and the roving room.

Once they are inside the nesting rooms the wall colors might not be that critical, I think, since it will be pitch black.

Just read this special email from one of my blog reader asking about the effect of colors:

Dear Harry,

Thanks for your reply. We are using CCTV cameras to view their numbers actually and we enter the BH once each month. Everything in our swiflet farm going smooth and develop constantly before we paint the internal of monkey house. The beginning of 10 months (before paint), the number of birds visiting is really good and number of birds increase constantly around 10++ birds each month. After painting, the number of birds visiting really decrease a lot, only 1 or 2 birds , even no birds willing to visit our farm.

And the main reason i said the color is the factor because i did try to change my external sound (marvelous cloud/black cloud/tongkat ali), as ordinary, nearby swiflets will come near due their curious. But the different between before and after paint, Before - lot of birds come near and willing to fly into the roving area, After - maybe still same number of birds come near but they are not willing to fly into the roving area, once they fly into the entrance hole they fly out immediately, some of the birds not even dare to fly into the entrance hole, but just fly pass by the entrance hole. Besides, what i view and realize through CCTV camera is that birds come near and fly with high speed toward the direction of the entrance hole, the moment their fly near the entrance hole, they change their fly direction suddenly, seem like scare to fly inside the entrance hole. This is all what i realize using my cctv camera. 

Before painting, there is no such kind of problem, large number of birds like to visit the roving area. This is my case , my story. The reason i felt dark color of internal money house causes young swiflets not willing and worry to fly inside. Maybe i should do an experiment using white manila card stick at the internal of monkey house to check any influence of the color. 

Anyway thanks for Mr.Harry reply and the sound you create is really fantastic. Lastly, i want to know the height for the aluminum fake nest. If not mistaken, my swiflet farm nesting plank is about 1 inch width and 6 inch height, does the aluminum fake nest can fix it ?