The fine-grained spatial abilities of three seed-caching corvids.

Academic Article


  • We used a psychophysical method to examine the ability of three corvid species to discern fine-grained spatial information. Nutcrackers, pinyon jays, and scrub-jays were required to discriminate the distance between two landmarks on a computer screen in an operant chamber. All three species were able to discriminate between arrays that differed by 20 mm; the discrimination gradients for scrub-jays and pinyon jays were sharper than those for nutcrackers, however. The results suggest that differences in spatial memory among these species are not related to differences in fine-grained perception.
  • Authors

  • Gibson, Brett
  • Kamil, Alan C
  • Status

    Publication Date

  • February 2005
  • Published In


  • Animals
  • Behavior, Animal
  • Birds
  • Discrimination Learning
  • Psychophysics
  • Space Perception
  • Digital Object Identifier (doi)

    Pubmed Id

  • 15971493
  • Start Page

  • 59
  • End Page

  • 66
  • Volume

  • 33
  • Issue

  • 1