ArticlePloS one2018
Tool making cockatoos adjust the lengths but not the widths of their tools to function.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Sensitivity to permanent non-functionality in Goffin's cockatoos (Cacatua goffiniana).Scientific reports · 2026Article
- The flexible, the stereotyped and the in-between: putting together the combinatory tool use origins hypothesis.Biological reviews of the Cambridge Philosophical Society · 2026Review
- Mechanical Problem Solving in Goffin's Cockatoos-Towards Modeling Complex Behavior.Adaptive behavior · 2024Article
- Hooded crows (Corvus cornix) manufacture objects relative to a mental template.Animal cognition · 2024Article
- What we (don't) know about parrot welfare: Finding welfare indicators through a systematic literature review.Animal welfare (South Mimms, England) · 2024Review
- Recent developments in parrot cognition: a quadrennial update.Animal cognition · 2023Review
- Innovative composite tool use by Goffin's cockatoos (Cacatua goffiniana).Scientific reports · 2022Article
- Casting the Net Widely for Change in Animal Welfare: The Plight of Birds in Zoos, Ex Situ Conservation, and Conservation Fieldwork.Animals : an open access journal from MDPI · 2021Article
- Extending the Reach of Tooling Theory: A Neurocognitive and Phylogenetic Perspective.Topics in cognitive science · 2021Article
- Object manufacture based on a memorized template: Goffin's cockatoos attend to different model features.Animal cognition · 2021Article
- Innovative problem solving in macaws.Learning & behavior · 2021Article
- New Caledonian crows' basic tool procurement is guided by heuristics, not matching or tracking probe site characteristics.Animal cognition · 2021Article
- Of Great Apes and Magpies: Initiations into Animal Behaviour.Animals : an open access journal from MDPI · 2020Article
- Using an Innovation Arena to compare wild-caught and laboratory Goffin's cockatoos.Scientific reports · 2020Article
- How to Report Anecdotal Observations? A New Approach Based on a Lesson From "Puffin Tool Use".Frontiers in psychology · 2020Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The ability to innovatively use or even manufacture different tools depending on a current situation can be silhouetted against examples of stereotyped, inborn tool use/manufacture and is thus often associated to advanced cognitive processing. In this study we confronted non-specialized, yet innovative tool making birds, Goffin's cockatoos (Cacatua goffiniana), with an apparatus featuring an out-of-reach food reward that could be placed at different distances from a tool opening. Alternatively, the food stayed at a constant distance but the tool opening in the front of the apparatus had different diameters. We used a novel material for tool manufacture (cardboard) that demanded an incrementally increased manufacturing effort from the actor, depending on the length of the tool required. We found that our subjects used two strategies to succeed in this tasks: either by making carboard-stripe tools using the full length of the material sheets originally offered or by adjusting the lengths of their tools to different goal distances. Subjects also discarded cardboard stripes that were too short to reach the goal prior to use and discarded longer pieces when the goal was further away than when it was close. Nevertheless, likely due to morphological constraints, the birds failed to adjust the widths of their tools depending on the diameter of the tool opening.
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