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

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 in these two species, though some contrasts in the form of specific play behaviors, such as kicking or biting, could be attributed to morphological differences. Social play in kakas is briefer, more predictable, and less sequentially diverse than that shown by keas. Kaka play also appears to be restricted to fledglings and juveniles, while the behavior is more broadly distributed among age groups in keas. Play initiation behaviors were relatively more frequent in kakas and more tightly intercorrelated in occurrence. A primary grouping of action patterns in kakas consisted of arboreal play, which was rare in keas. The most striking species difference was exhibited in social object play, which is pervasive among keas, but which was not observed in kakas. Although the two species are morphologically similar, they differ strikingly in several aspects of their ecology and social behavior, including the duration of the association between juveniles and adults, the degree of exploratory behavior, and the flexibility of their foraging strategies. The observed species differences in play behavior are discussed in relation to the contrasting life histories in the two species, suggesting that many features of social play may reflect evolutionary responses to particular ontogenetic and ecological constraints.

Promoting Social Interaction through Teaching Generalized Play Initiation Responses to Preschool Children with Autism

Two experiments were conducted to investigate the effects of play initiation training on subsequent social interactions between students with severe disabilities and their nonhandicapped peers within play contexts. In both studies, five nonhandicapped peers were used as training confederates, and generalization probes were conducted within unstructured free-play situations with a larger number of peers who did not participate in training. In Experiment 1, a preschool student with autistic behaviors was integrated into a regular preschool The effects of two treatment conditions were compared: (a) providing an awareness activity plus rewards for the nonhandicapped peers who initiated interactions and (b) teaching initiations and play behaviors to the student with severe disabilities. The results indicated that although the awareness activity plus reward condition increased the frequency of peer initiations, peer responsivity to the initiations by the student with severe disabilities remained low. When the student with severe disabilities was taught to initiate interactions and play appropriately, the level of initiation by the student increased and the level of responsivity by the peers toward his initiations also increased. In Experiment 2, we replicated this effect with two students who were integrated into a kindergarten class. The effects of competent social interaction skills on shaping environments that are responsive to the social initiations of students with severe disabilities are discussed.