Its a matter of curiosity and wanted to know deeper about this gifted bird that use their saliva to erect their nests.
Yesterday I entered inside a newly launched BH to apply more aroma plus checking the sound system.
During the short visit I managed to inspect the old nest plus any new markings on the floor (bird shit spots) and of course any saliva markings above it.
The old nest was still in operation and the tenant was still using it. The fresh bird shit spots below it proved that they still are using the nests.
Deeper inside, on the top most floor, there was one newly laid saliva and the second was at the middle floor.
I quickly used those aluminium ladder and took some pictures.
The two new markings have this peculiar characteristics.
Both seems to be above and on tweeters and it started on the left hand side.
This observation conclude that they start building from the left and move to the right.
Hopefully they will do it a continuous method or they might later jumped to the right side and later meet in the middle?
Something which I am curious about.
I hope these findings will be useful to all who wanted to know more about swiftlet.
We need to learn more about them and if everyone contribute their findings it would be fantastic.