* Historically: Kakapo were thought to breed every 2-4 years, driven by the availability of fruiting trees (their primary food source).
* Currently: Due to the small population and conservation efforts, kakapo breeding is managed. They are now induced to breed every 2-4 years, depending on factors like food availability and the health of the population.
This irregular breeding pattern is a key factor in the kakapo's endangered status, as it makes recovery slower.