We infer, in concurrence with previous studies, that cave-dwelling Edible-nest Swiftlets are
dependent on forests and will be adversely affected by the present rate of deforestation and
habitat alteration. Changes in land use away from caves used for breeding sites will also lead to
population declines of Edible-nest Swiftlets because of its wider foraging ranges. However, habitat alteration around breeding caves may not have a marked effect on foraging activities of Glossy Swiftlets, which have more elasticity in habitat use. AC