Supplemental Material for Reasoning by Exclusion in New Caledonian Crows (Corvus moneduloides) Cannot Be Explained by Avoidance of Empty Containers

2015 ◽  
Keyword(s):  
New Caledonian Crows ◽  
Empty Containers ◽  
Corvus Moneduloides

scholarly journals Tool use by wild New Caledonian crows Corvus moneduloides at natural foraging sites

2010 ◽  
Vol 277 (1686) ◽  
pp. 1377-1385 ◽  
Author(s):  
Lucas A. Bluff ◽  
Jolyon Troscianko ◽  
Alex A. S. Weir ◽  
Alex Kacelnik ◽  
Christian Rutz
Keyword(s):  
Tool Use ◽  
New Caledonian Crows ◽  
Corvus Moneduloides

Selection of tool diameter by New Caledonian crows Corvus moneduloides

2004 ◽  
Vol 7 (2) ◽  
pp. 121-127 ◽  
Author(s):  
Jackie Chappell ◽  
Alex Kacelnik
Keyword(s):  
New Caledonian Crows ◽  
Tool Diameter ◽  
Corvus Moneduloides ◽  
Selection Of

scholarly journals On the evolutionary and ontogenetic origins of tool-oriented behaviour in New Caledonian crows (Corvus moneduloides)

2011 ◽  
Vol 102 (4) ◽  
pp. 870-877 ◽  
Author(s):  
BEN KENWARD ◽  
CHRISTIAN SCHLOEGL ◽  
CHRISTIAN RUTZ ◽  
ALEXANDER A. S. WEIR ◽  
THOMAS BUGNYAR ◽  
...  
Keyword(s):  
New Caledonian Crows ◽  
Corvus Moneduloides

scholarly journals Decision-making flexibility in New Caledonian crows, young children and adult humans in a multi-dimensional tool-use task

2019 ◽  
Author(s):  
Rachael Miller ◽  
Romana Gruber ◽  
Anna Frohnwieser ◽  
Martina Schiestl ◽  
Sarah A. Jelbert ◽  
...  
Keyword(s):  
Decision Making ◽  
Tool Use ◽  
Food Item ◽  
Work Effort ◽  
Pongo Abelii ◽  
Adult Humans ◽  
New Caledonian Crows ◽  
Multiple Variables ◽  
Corvus Moneduloides ◽  
Decision Making Tool

AbstractThe ability to make profitable decisions in natural foraging contexts may be influenced by an additional requirement of tool-use, due to increased levels of relational complexity and additional work-effort imposed by tool-use, compared with simply choosing between an immediate and delayed food item. We examined the flexibility for making the most profitable decisions in a multi-dimensional tool-use task, involving different apparatuses, tools and rewards of varying quality, in 3-5-year-old children, adult humans and tool-making New Caledonian crows (Corvus moneduloides). We also compared our results to previous studies on habitually tool-making orangutans (Pongo abelii) and non-tool-making Goffin’s cockatoos (Cacatua goffiniana). Adult humans, cockatoos and crows, though not children and orangutans, did not select a tool when it was not necessary, which was the more profitable choice in this situation. Adult humans, orangutans and cockatoos, though not crows and children, were able to refrain from selecting non-functional tools. By contrast, the birds, though not primates tested, struggled to attend to multiple variables - where two apparatuses, two tools and two reward qualities were presented simultaneously - without extended experience. These findings indicate: (1) in a similar manner to humans and orangutans, New Caledonian crows and Goffin’s cockatoos can flexibly make profitable decisions in some decision-making tool-use tasks, though the birds may struggle when tasks become more complex; (2) children and orangutans may have a bias to use tools in situations where adults and other tool-making species do not.

scholarly journals Cognitive requirements for tool use by New Caledonian crows (Corvus moneduloides)

2007 ◽  
Vol 34 (1) ◽  
pp. 1-7 ◽  
Author(s):  
G. R. Hunt ◽  
C. Lambert ◽  
R. D. Gray
Keyword(s):  
Tool Use ◽  
New Caledonian Crows ◽  
Corvus Moneduloides

scholarly journals Lateralization of tool use in New Caledonian crows ( Corvus moneduloides )

2004 ◽  
Vol 271 (suppl_5) ◽  
Author(s):  
A. A. S. Weir ◽  
B. Kenward ◽  
J. Chappell ◽  
A. Kacelnik
Keyword(s):  
Tool Use ◽  
New Caledonian Crows ◽  
Corvus Moneduloides

Extraordinary large brains in tool-using New Caledonian crows (Corvus moneduloides)

2008 ◽  
Vol 433 (3) ◽  
pp. 241-245 ◽  
Author(s):  
Julia Cnotka ◽  
Onur Güntürkün ◽  
Gerd Rehkämper ◽  
Russell D. Gray ◽  
Gavin R. Hunt
Keyword(s):  
New Caledonian Crows ◽  
Corvus Moneduloides
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