Swiftlet Sounds Collection for Bird House Success

Darkness Roosting in Caves and Swiftlet Farms

One of the main reasons why swiftlets nest in dark areas (usually no greater than a light intensity factor of 2 lux) is because these areas provide them with a high level of safety from predators. Also, swiftlets will make their nests at the highest parts of these dark areas as these areas not only provide safety from predators but are of a lower temperature as well.

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