The evolutionary origins and ecological context of tool use in New Caledonian crows

C Rutz, JJH St Clair - Behavioural Processes, 2012 - Elsevier
New Caledonian (NC) crows Corvus moneduloides are the most prolific avian tool users. In
the wild, they use at least three distinct tool types to extract invertebrate prey from deadwood …

Setting tool use within the context of animal construction behaviour

M Hansell, GD Ruxton - Trends in Ecology & Evolution, 2008 - cell.com
Tool use and manufacture are given prominence by their rarity and suggested relation to
human lineage. Here, we question the view that tool use is rare because cognitive abilities …

Insightful problem solving and creative tool modification by captive nontool-using rooks

CD Bird, NJ Emery - … of the National Academy of Sciences, 2009 - National Acad Sciences
The ability to use tools has been suggested to indicate advanced physical cognition in
animals. Here we show that rooks, a member of the corvid family that do not appear to use …

Complex cognition and behavioural innovation in New Caledonian crows

AH Taylor, D Elliffe, GR Hunt… - Proceedings of the …, 2010 - royalsocietypublishing.org
Apes, corvids and parrots all show high rates of behavioural innovation in the wild. However,
it is unclear whether this innovative behaviour is underpinned by cognition more complex …

Tool manufacture by naive juvenile crows

B Kenward, AAS Weir, C Rutz, A Kacelnik - Nature, 2005 - nature.com
Abstract New Caledonian crows (Corvus moneduloides) are the most prolific avian tool-
users,. Regional variation in the shape of their tools may be the result of cumulative cultural …

Do New Caledonian crows solve physical problems through causal reasoning?

AH Taylor, GR Hunt, FS Medina… - Proceedings of the …, 2009 - royalsocietypublishing.org
The extent to which animals other than humans can reason about physical problems is
contentious. The benchmark test for this ability has been the trap-tube task. We presented …

Development of tool use in New Caledonian crows: inherited action patterns and social influences

B Kenward, C Rutz, AAS Weir, A Kacelnik - Animal behaviour, 2006 - Elsevier
New Caledonian crows, Corvus moneduloides, are the most advanced avian tool makers
and tool users. We previously reported that captive-bred isolated New Caledonian crows …

New Caledonian crows use mental representations to solve metatool problems

R Gruber, M Schiestl, M Boeckle, A Frohnwieser… - Current Biology, 2019 - cell.com
One of the mysteries of animal problem-solving is the extent to which animals mentally
represent problems in their minds. Humans can imagine both the solution to a problem and …

Using the Aesop's fable paradigm to investigate causal understanding of water displacement by New Caledonian crows

SA Jelbert, AH Taylor, LG Cheke, NS Clayton… - PloS one, 2014 - journals.plos.org
Understanding causal regularities in the world is a key feature of human cognition. However,
the extent to which non-human animals are capable of causal understanding is not well …

[HTML][HTML] The role of experience in problem solving and innovative tool use in crows

AMP Von Bayern, RJP Heathcote, C Rutz, A Kacelnik - Current Biology, 2009 - cell.com
Creative problem solving and innovative tool use in animals are often seen as indicators of
advanced intelligence because they seem to imply causal reasoning abilities [1]. However …