The owner arrange for me to inspect his BH after terminating hid current Situ cum contractor.
"I have been following your blog since 2011 and decided to call you over" he said.
His main complain was the way his ex consultant look after his three stories BH.
The number of nests seems to stop at 30 and with very little movement.
His consultant was no longer interested to help any further.
I collected a few interesting but wrong teaching by this very popular "consultant".
1). He believed that swiftlet likes to fly in a sway manner. This is why he will erect those permanent walls made of bricks. Usually they will be occupy half length of the floor.
2) He also makes his followers believed that swiftlet need lots of light inside the BH. According ti him only with these light they will venture into all the floors.
3). Nearly all BH constructed by him uses those cement slabs as the birds nesting place.
4) His method of wetting the BH is by those water spray using timer.
5) His selection of amplifiers are those low end type that will not last more then 1 year.
Looking from the outside you can easily identify a number of flaws which should have not happened.
The consultant seems to be unaware about how crucial is the bird's flying path.
He also ignore the important of the morning sun.
He give very little attention to this very important design feature.
If he was aware the BH orientation would not be what it is now.
The monkey house design was too big and wasting a lot of nesting space.
The roof areas were bare with not a single tweeter especially hexagonal tweeters mounted on its roof.
His proffered design method to draw those wild birds to all the floors was the tunnel hole.
This design type from my observation is the main reason why most of the current tenants are occupying only the top floors.
They either could not find their way down or lazy to fly lower.
All his ventilation holes ended at the 90* elbow without any extension pipe.
With maintenance light off you can see those light polluting the nesting rooms even at the end of the building.
I made some comments about how he installed the cement made planks.
Usually it should be lined in perpendicular to the birds flying in path however in this BH they run parallel to it.
There many more design flaws and I recorded all of them inside my written report to the BH owner.
If the revamp operation are in accordance to my recommendations plus some additional application of appropriate aroma I have a very strong feeling the BH will double its nests population within 4-6 months there after.