As we live in the tropical country which there are seasons of hot days without rain and towards the end of the year rain and storm are common.
( heavy rain & strong wind are common towards the end of the year)
Observation on these helps you to understand how these affect your farms.
Wind is one of the most important factors that one needs to understand. Strong wind makes it hard for birds to fly. That is why in certain area when the monsoon started you would see that number of birds used to appear in hundred or thousand then suddenly reduced.
Understanding of the above helps in placement of entrance hole which is one of the most important criteria of a successful farm.
( look at the cloudy sky behind me, from the top of the roof, I could observe cleary)
If taken likely new farms would take a longer time for birds to stay and make nest.