Hunt at night would allow bats to exploit an ecological niche not exploited by birds. Then, bats flying in daylight are likely to be attacked by predators such as birds of prey (Accipitridae, Falconidae).
Kuwinda usiku itaruhusu popo ya kutumia niche mazingira si vibaya na ndege. Basi, popo kuruka katika mchana ni uwezekano wa kushambuliwa na wanyama wanaokula wenzao kama vile ndege wa kuwinda (Accipitridae, Falconidae).