Tool making cockatoos adjust the lengths but not the widths of their tools to function

Goffin's cockatoos make the same tool type from different materials

(2016) Alice M. I. Auersperg et al.   Biology Letters

Flexible decision-making relative to reward quality and tool functionality in Goffin cockatoos (Cacatua goffiniana)

(2016) I. B. Laumer et al.   Scientific Reports

Combinatory actions during object play in psittaciformes (Diopsittaca nobilis, Pionites melanocephala, Cacatua goffini) and corvids (Corvus corax, C. monedula, C. moneduloides).

(2015) Alice M. I. Auersperg et al.   JOURNAL OF COMPARATIVE PSYCHOLOGY

Fitting Linear Mixed-Effects Models Usinglme4

(2015) Douglas Bates et al.   Journal of Statistical Software

Social transmission of tool use and tool manufacture in Goffin cockatoos (Cacatua goffini)

(2014) A. M. I. Auersperg et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

Spontaneous innovation in tool manufacture and use in a Goffin’s cockatoo

(2012) Alice M.I. Auersperg et al.   CURRENT BIOLOGY

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

(2011) Christian Rutz et al.   BEHAVIOURAL PROCESSES

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

(2011) BEN KENWARD et al.   BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY

How do adult humans compare with New Caledonian crows in tool selectivity?

(2010) F. J. Silva et al.   LEARNING & BEHAVIOR

Technical innovations drive the relationship between innovativeness and residual brain size in birds

(2009) Sarah E. Overington et al.   ANIMAL BEHAVIOUR

Generalized linear mixed models: a practical guide for ecology and evolution

(2009) Benjamin M. Bolker et al.   TRENDS IN ECOLOGY & EVOLUTION

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

(2008) Julia Cnotka et al.   NEUROSCIENCE LETTERS

Setting tool use within the context of animal construction behaviour

(2008) M HANSELL et al.   TRENDS IN ECOLOGY & EVOLUTION