Ontogeny of object permanence in a non-storing corvid species, the jackdaw (Corvus monedula)

  • Ujfalussy D
  • Miklósi Á
  • Bugnyar T
  • 39


    Mendeley users who have this article in their library.
  • 11


    Citations of this article.


The aim of the present study was to investigate the ontogeny of object permanence in a non-caching corvid species, the jackdaw (Corvus monedula). Jackdaws are often presented as typical examples of non-storing corvids, as they cache either very little or not at all. We used Uzgiris and Hunt's Scale 1 tasks to determine the age at which the certain stages set in and the final stage of this capacity that is reached. Our results show that the lack of food-storing behaviour is not associated with inferior object permanence abilities in the jackdaw, as our subjects (N = 19) have reached stage 5 competence (to follow successive visible displacements) at the average age of 61 days post-hatch and showed some evidence of stage 6 competence (to follow advanced invisible displacements) at 81 days post-hatch and thereafter. As we appreciate that object permanence abilities have a very wide ecological significance, our positive results are probably the consequence of other, more fundamental ecological pressures, such as nest-hole reproduction or prey-predator interactions.

Author-supplied keywords

  • Corvids
  • Jackdaw
  • Non-storing
  • Object permanence
  • Ontogeny

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Get full text


  • Dorottya Júlia Ujfalussy

  • Ádám Miklósi

  • Thomas Bugnyar

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free