Animal Learning & Behavior

, Volume 32, Issue 1, pp 62–71 | Cite as

Testing social learning in a wild mountain parrot, the kea (Nestor notabilis)



Huber, Taborsky, and Rechberger (2001) reported an experiment in which the efficiency with which captive keas opened a complex food container was increased by observation of a skilled conspecific. However, only testing social learning in free-ranging animals can demonstrate social learning in natural conditions. For that purpose, a tube-lifting paradigm was developed and tested on keas both in captivity and in Mount Cook National Park, New Zealand. The task was to remove a tube from an upright pole in order to gain access to a reward inside the tube. The top of the pole was higher than a standing kea, so that, to remove the tube, an individual had to simultaneously climb onto the pole and manipulate the tube up the pole with its bill. Because only 1 naive bird managed to remove a tube twice in 25 halfhour sessions and disappeared after success, another bird was trained to solve the task and to provide demonstrations for others. Even under such conditions, only 2 of at least 15 birds learned to remove the tube in 28 sessions. There was no indication that observer birds’ use of bill and feet when exploring the tube changed as the number of observations of tube removal increased in a way that would, in principle, increase the likelihood of tube removal. The results suggest a dissociation of social learning potential as assessed in laboratory animals, and social transmission of foraging techniques in natural populations.


  1. Akins, C. K., &Zentall, T. R. (1996). Imitative learning in male Japanese quail (Coturnix japonica) using the two-action method.Journal of Comparative Psychology,110, 316–320.CrossRefPubMedGoogle Scholar
  2. Akins, C. K., &Zentall, T. R. (1998). Imitation in Japanese quail: The role of reinforcement of demonstrator responding.Psychonomic Bulletin & Review,5, 694–697.Google Scholar
  3. Bond, A. B., Wilson, K.-J., &Diamond, J. (1991). Sexual dimorphism in the kea (Nestor notabilis).Emu,91, 12–19.CrossRefGoogle Scholar
  4. Brejaart, R. (1988).Diet and feeding behaviour of the kea (Nestor notabilis). Unpublished doctoral dissertation, Lincoln University, Canterbury, New Zealand.Google Scholar
  5. Bugnyar, T., &Huber, L. (1997). Push or pull: An experimental study on imitation in marmosets.Animal Behaviour,54, 817–831.CrossRefPubMedGoogle Scholar
  6. Call, J., &Carpenter, M. (2002). Three sources of information in social learning. In K. Dautenhahn & C. L. Nehaniv (Eds.),Imitation in animals and artifacts (pp. 211–228). Edinburgh: MIT Press.Google Scholar
  7. Carlier, P., &Lefebvre, L. (1997). Ecological differences in social learning between adjacent, mixing populations of zenaida doves.Ethology,103, 772–784.CrossRefGoogle Scholar
  8. Clark, C. M. H. (1970). Observations on population, movements and food of the kea (Nestor notabilis).Notornis,17, 105–114.Google Scholar
  9. Coussi-Korbel, S., &Fragaszy, D.M. (1995). On the relationship between social dynamics and social learning.Animal Behaviour,50, 1441–1453.CrossRefGoogle Scholar
  10. Dawson, B. V., &Foss, B. M. (1965). Observational learning in budgerigars.Animal Behaviour,13, 470–474.CrossRefPubMedGoogle Scholar
  11. Diamond, J., &Bond, A. B. (1999).Kea, bird of paradox: The evolution and behavior of a New Zealand parrot. Berkeley: University of California Press.Google Scholar
  12. Dolman, C. S., Templeton, J., &Lefebvre, L. (1996). Mode of foraging competition is related to tutor preference inZenaida aurita.Journal of Comparative Psychology,110, 45–54.CrossRefPubMedGoogle Scholar
  13. Fawcett, T.W., Skinner, A.M. J., &Koldsmith, A. R. (2002). A test of imitative learning in starlings using a two-action method with an enhanced ghost control.Animal Behaviour,64, 547–556.CrossRefGoogle Scholar
  14. Fischer, J., &Hinde, R. A. (1949). The opening of milk bottles by birds.British Birds,42, 347–357.Google Scholar
  15. Fritz, J., Bisenberger, A., &Kotrschal, K. (2000). Stimulus enhancement in greylag geese (Anser anser): Socially mediated learning of an operant task.Animal Behaviour,59, 1119–1125.CrossRefPubMedGoogle Scholar
  16. Fritz, J., &Kotrschal, K. (1999a). Social constraints and profitability of scrounging affect social learning. In K. Dautenhahn & C. L. Nehaniv (Eds.),Imitation in animals and artifacts (pp. 20–26). Edinburgh: MIT Press.Google Scholar
  17. Fritz, J., &Kotrschal, K. (1999b). Social learning in common ravens,Corvus corax.Animal Behaviour,57, 785–793.CrossRefPubMedGoogle Scholar
  18. Galef, B. J., Jr. (1988). Imitation in animals: History, definitions and interpretation of data from the psychological laboratory. In T. R. Zentall & B. G. Galef, Jr. (Eds.),Social learning: Psychological and biological perspectives (pp. 3–28). Hillsdale, NJ: Erlbaum.Google Scholar
  19. Giraldeau, L.-A., &Lefebvre, L. (1987). Scrounging prevents cultural transmission in food-finding behaviour in pigeons.Animal Behaviour,35, 387–394.CrossRefGoogle Scholar
  20. Heinrich, B. (2000). Testing insight in ravens. In C. M. Heyes & L. Huber (Eds.),The evolution of cognition (pp. 289–305). Cambridge, MA: MIT Press.Google Scholar
  21. Heyes, C. M., &Dawson, G. R. (1990). A demonstration of observational learning in rats using a bi-directional control.Quarterly Journal of Experimental Psychology,42B, 59–71.Google Scholar
  22. Higgins, P. J. (Ed.). (1999).Handbook of Australian, New Zealand and Antarctic birds. Melbourne: Oxford University Press.Google Scholar
  23. Hinde, R. A., &Fischer, J. (1951). Further observations on the opening of milk bottles by birds.British Birds,44, 392–396.Google Scholar
  24. Huber, L., Taborsky, M., &Rechberger, S. (2001). Social effects on object-exploration in keas.Animal Behaviour,62, 945–954.CrossRefGoogle Scholar
  25. Huffman, M. A. (1996). Acquisition of innovative cultural behaviors in nonhuman primates: A case study of stone handling, a socially transmitted behavior in Japanese macaques. In C. M. Heyes & B. G. Galef, Jr. (Eds.),Social learning in animals: The roots of culture (pp. 267–289). San Diego: Academic Press.CrossRefGoogle Scholar
  26. Jackson, J. R. (1960). Keas at Arthur’s Pass.Notornis,9, 39–58.Google Scholar
  27. Jackson, J. R. (1963). The nesting of keas.Notornis,10, 319–326.Google Scholar
  28. Johnston, R. (1999).The kea (Nestor notabilis): A New Zealand problem or problem solver? Unpublished master’s thesis, University of Canterbury, Christchurch, New Zealand.Google Scholar
  29. Kaiser, D. H., Zentall, T. R., &Galef, B. G., Jr. (1997). Can imitation in pigeons be explained by local enhancement together with trial-and-error learning?Psychologcal Science,8, 459–460.CrossRefGoogle Scholar
  30. Keller, R. (1974). Beitrag zur Biologie und Ethologie der Keas (Nestor notabilis) des Züricher Zoos [Contribution to the biology and ethology of the kea at the Zoo of Zurich].Zoologische Beiträge,22, 111–156.Google Scholar
  31. Keller, R. (1975). Das Spielverhalten der Keas (Nestor notabilis Gould) des Züricher Zoos [Play behavior of keas at the Zoo of Zurich].Zeitschrift für Tierpsychologie,38, 393–408.CrossRefGoogle Scholar
  32. Kubat, S. (1992).Die Rolle von Neuigkeit, Andersartigkeit und sozialer Struktur für die Exploration von Objekten beim Kea (Nestor notabilis) [Role of novelty, oddity, and social structure for object exploration in kea]. Unpublished doctoral dissertation, University of Vienna.Google Scholar
  33. Kummer, H., &Goodall, J. (1985). Conditions of innovative behaviour in primates. In L. Weiskrantz (Ed.),Animal intelligence (pp. 203–214). Oxford: Oxford University Press, Clarendon Press.Google Scholar
  34. Lefebvre, L. (2000). Feeding innovations and their cultural transmission in birds. In C.M. Heyes & L. Huber (Eds.),The evolution of cognition (pp. 311–328). Cambridge, MA: MIT Press.Google Scholar
  35. Lefebvre, L., &Giraldeau, L.-A. (1994). Cultural transmission in pigeons is affected by the number of tutors and bystanders present.Animal Behaviour,47, 331–337.CrossRefGoogle Scholar
  36. Nicol, C. J., &Pope, S. J. (1994). Social learning in small flocks of laying hens.Animal Behaviour,47, 1289–1296.CrossRefGoogle Scholar
  37. Potts, K. J. (1969).Ethological studies of the kea (Nestor notabilis) in captivity: Nonreproductive behavior. Unpublished bachelor’s thesis, Victoria University, Wellington, New Zealand.Google Scholar
  38. Richardson, P. J., &Boyd, R. (2000). Climate, culture, and the evolution of cognition. In C.M. Heyes & L. Huber (Eds.),The evolution of cognition (pp. 329–346). Cambridge, MA: MIT Press.Google Scholar
  39. Rosenblum, L. A., Kummer, H., Nadler, L. A., Robinson, J., &Suomi, S. J. (1989). Interface of field and laboratory-based research in primatology.American Journal of Primatology,18, 61–64.CrossRefGoogle Scholar
  40. Sherry, D. F., &Galef, B. G., Jr. (1990). Social learning without imitation: More about milk bottle opening by birds.Animal Behaviour,40, 987–989.CrossRefGoogle Scholar
  41. Spence, K.W. (1937). Experimental studies of learning and higher mental processes in infra-human primates.Psychological Bulletin,34, 806–850.CrossRefGoogle Scholar
  42. Temple, P. (1996).The book of the kea. Auckland: Hodder Moa Beckett.Google Scholar
  43. Tomasello, M. (1990). Cultural transmission in the tool use and communicatory signaling of chimpanzees? In S. T. Parker & K. R. Gibson (Eds.),Language and intelligence in monkeys and apes: Comparative developmental perspectives (pp. 271–311). Cambridge: Cambridge University Press.Google Scholar
  44. Tomasello, M. (1996) Do apes ape? In C. M. Heyes & B. G. Galef, Jr. (Eds.),Social learning in animals: The roots of culture (pp. 319–346). San Diego: Academic Press.CrossRefGoogle Scholar
  45. Voelkl, B., &Huber, L. (2000) True imitation in marmosets.Animal Behaviour,60, 195–202.CrossRefPubMedGoogle Scholar
  46. Whiten, A. (1993). Human enculturation, chimpanzee enculturation and the nature of imitation.Behavioral & Brain Sciences,16, 538–539.CrossRefGoogle Scholar
  47. Whiten, A., &Custance, D. (1996). Studies of imitation in chimpanzees and children. In C.M. Heyes & B. G. Galef, Jr. (Eds.),Social learning in animals: The roots of culture (pp. 291–318). San Diego: Academic Press.CrossRefGoogle Scholar
  48. Whiten, A., &Ham, R. (1992). On the nature and evolution of imitation in the animal kingdom: Reappraisal of a century of research.Advances in the Study of Behavior,21, 239–283.CrossRefGoogle Scholar
  49. Wilson, K. J. (1990). Kea: Creature of curiosity.Forest & Bird,21, 20–26.Google Scholar
  50. Zentall, T. R. (1996). An analysis of imitative learning in animals. In C.M. Heyes & B. G. Galef, Jr. (Eds.),Social learning in animals: The roots of culture (pp. 221–243). San Diego: Academic Press.CrossRefGoogle Scholar

Copyright information

© Psychonomic Society, Inc. 2004

Authors and Affiliations

  1. 1.Department of Developmental and Theoretical BiologyUniversity of ViennaViennaAustria

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