Behavioural lateralization in budgerigars varies with the task and the individual

Schiffner, Ingo and Srinivasan, Mandyam V. (2013) Behavioural lateralization in budgerigars varies with the task and the individual. PLoS One, 8 12: e82670.1-e82670.8. doi:10.1371/journal.pone.0082670


Author Schiffner, Ingo
Srinivasan, Mandyam V.
Title Behavioural lateralization in budgerigars varies with the task and the individual
Journal name PLoS One   Check publisher's open access policy
ISSN 1932-6203
Publication date 2013-12-01
Sub-type Article (original research)
DOI 10.1371/journal.pone.0082670
Open Access Status DOI
Volume 8
Issue 12
Start page e82670.1
End page e82670.8
Total pages 8
Place of publication San Francisco, CA, United States
Publisher Public Library of Science
Language eng
Abstract Handedness/footedness and side biases are a well-known phenomenon in many animals, including humans. However, these so-called biases have mostly been studied at the population level - individual biases have received less attention, especially with regard to consistency over different tasks. Here we investigate behavioral lateralization in 12 male Budgerigars, Melopsittacus undulatus, a social parrot inhabiting the Australian bushlands. We performed 5 types of experiments to investigate lateralization, in tasks that involved climbing onto a perch, or landing on perches arranged in various configurations. The birds displayed highly significant, individually varying biases. The bias displayed by any particular individual varied with the task, in strength as well as polarity. Analysis of the data revealed that the preferred foot used for climbing did not coincide with the foot that was used while landing. Thus, landing choices are probably not determined by foot bias. Furthermore, these individual preferences were overridden completely when a bird had to perform a task simultaneously with another bird.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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