 Mammalian predators , in contrast to birds , rely on their sense of smell and hearing to find prey and often hunt by night . The kakapo 's adaptations to avoid avian predation have thus been useless against its new enemies – this is one of the reasons for its massive decline since the introduction of dogs , cats and mustelids – see Conservation : Human impact . A typical way for humans to hunt down the kakapo is by releasing trained dogs . 
 Mammalian predators , in contrast to birds , rely on their sense of smell and hearing to find prey and often hunt by night . The kakapo <a href='null_genetive' title='1'><mark>'s</mark></a>adaptations to avoid avian predation have thus been useless against its new enemies – this <a href='drop_aux' title='2'><mark>is</mark></a>one of the reasons for its massive decline since the introduction of dogs , cats and mustelids – see Conservation : Human impact . A typical way for humans to hunt down the kakapo is by releasing trained dogs . 
Mammalian predators , in contrast to birds , rely on their sense of smell and hearing to find prey and often hunt by nite . da kakapo  adaptations to avoid avian predation have thus been useless against its new enemies – this one of the reasons fa its massive decline since tdaintroduction of dogs , cats and mustelids – see Conservation : Human impact . A typical way for humans to hunt downn the kakapo is by releasing trained dogs .