Tool bending in New Caledonian crows

Christian Rutz, Shoko Sugasawa, Jessica Eva Megan van der Wal, Barbara Christina Klump, James St Clair

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)
3 Downloads (Pure)


‘Betty’ the New Caledonian crow astonished the world, when she ‘spontaneously’ bent straight pieces of garden wire into hooked foraging tools. Recent field experiments have revealed that tool bending is part of the species’ natural behavioural repertoire, providing important context for interpreting Betty’s iconic wire-bending feat. More generally, this discovery provides a compelling illustration of how natural history observations can inform lab-based research into the cognitive capacities of non-human animals.
Original languageEnglish
Article number160439
Number of pages4
JournalRoyal Society Open Science
Issue number8
Early online date10 Aug 2016
Publication statusPublished - Aug 2016


  • Comparative cognition
  • Corvus moneduliodes
  • Innovation
  • Insight
  • Intelligence
  • Tool use


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