Social play in kaka (Nestor meridionalis) with comparisons to kea (Nestor notabilis)

Abstract Social play in the kaka (Nestor meridionalis), a New Zealand parrot, is described and contrasted with that of its closest relative, the kea (Nestor notabilis), in one of the first comparative studies of social play in closely related birds. Most play action patterns were clearly homologous...

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