Evidence for Bergmann’s Rule and Not Allopatric Subspeciation in the Threatened Kaka ( Nestor meridionalis )

Research summary and options for conservation of kaka (Nestor meridionalis)

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Social play in kakapo (Strigops habroptilus) with comparisons to kea (Nestor notabilis) and kaka (Nestor meridionalis)

Social Play in Kaka (Nestor meridionalis) with Comparisons to Kea (Nestor notabilis)

Can you teach an old parrot new tricks? Cognitive development in wild kaka (Nestor meridionalis).

Despite recent efforts to characterize innovative individuals within a species, we still know very little about the ontogeny of innovation ability. A number of studies have found that innovation rates are correlated with personality traits, such as neophilia and exploration. Juvenile birds are frequently more neophilic and explorative, yet few studies have found evidence of age-related differen...

Energetics of South Island Kaka (nestor Meridionalis Meridionalis) Feeding on the Larvae of Kanuka Longhorn Beetles (ochrocydus Huttoni)

Kaka (Nestor meridionalis meridionalis) studied in Big Bush State Forest spent 35% of their feeding time digging out Ochrocydus huttoni larvae from live mountain beech trunks (Nothofagus solandri var. cliffortioides). Larvae of O. huttoni had a high energy value compared to that of other insects. The assimilation efficiency for energy of two captive kaka was 91 j: 3% when fed a diet of O. hut/o...