Too many consultants running around with very little knowledge about sounds.
From my various observations, if you use external sounds as your internal sounds you will have very little or no birds staying as your tenant.
Those birds tends to move from one tweeter to another and will not take a fixed position.
No fixed position means no building of nests.
Even if they take up a fixed position they tend to avoid making any nest on or around the external sound playing tweeters.
We do not have the exact reasons why but this is very true if you monitor your BH carefully.
The guy who recommended the so called consultant was at the back of us shying away from joining the conversations. He quickly dismissed himself and was not with us within a few short minutes.
The only exception is playing the Babyking. Babyking sound can be played both as internal and external.
I was right in saying so. We checked the BH and there was not a single fresh bird shit spot on the floor after two months into operation with external sounds played and internal sounds.
The owner confirmed that the birds behavior now were more positive and many came and entered his sick BH.
My sincere hope is that more people will come forward to let me have a good look at your sick BH.
I am here to provide some help.
There is nothing better than putting a sick BH back to it original path.
If you need my personal view about your BH please call me at 017 7551318.
I normally come out with a report that is priceless and used it as your guideline on how to further improve your BH nests population.