When we talk about Macro we must understand what influence it. Weather affects Macro. Weather change affects the temp and Rh of all farms immaterial how good the farms heat insulation.
Recently in some states in the West North temp reach 38C' and I have readers who called me for advise registered internal farm temp reaches 40C where the usual high was at 30C.
(very dry and hot)
They were seeing less and less birds coming back. With such high temp it is hard for the birds to stay and to look for food. When the temp is high and without rain flying ants, nymphs, etc would be hard to find. So even farms that are heat & low Rh proof or with best tech that are using best heat insulation bricks would not be spared. The birds just can't "cari makan" so they migrate to area that have lots of food and areas that have a Macro that suit them. It is not uncommon that Swiftlet migrate to area that are few hundred Km from their existing place as it has recorded.
This forced the birds to migrate as they are no longer able to live in an environment that beyond their living perimeter. Some may look at it as a set back while others take it as opportunity.
So for the opportunists, it would boil down to how well they capture the migration birds. A simple calculation would be “CAPTURE Vs FORGO Percentage"
As we know the Monsoon changes every 5-6 months, East to West and via versa. So both sides would have the equal opportunity.
For example if you loose 20% of birds during the drought season and manage to attract 50% of birds that migrate to your area during raining season than you would gain 30% increase in birds in your farm per period.
If you loose 20% of birds during the drought season and only mange to attract 10% of birds that migrate to your area during raining season than you would not see increase in bird’s population in your farm. You would see a decrease, you loose 10% per period.
My conclusion is that it is OK to loose some birds during bad season but at the same time when opportunity come it should make back at least the double what you have lost. If one could maintain such balance then seeing a good increase of bird’s population in farm yearly would not be a problem.
So having a good farm is not good enough, one needs to accommodate, understand, and know how to take advantage when the opportunity is given.
So Swiftlet farming is one thing that you can not sit down and wait and wait and wait.......till no ending.
"Swiftlet farming is every moment you are waiting something is being done. It is constantly adapting to the changes of the environment to create a balance which benefits the farmer and the Swiftlet."