Tool-use and instrumental learning in the Eurasian jay (Garrulus glandarius)

An Investigation into the Cognition Behind Spontaneous String Pulling in New Caledonian Crows

(2010) Alex H. Taylor et al.   PLoS One

The Role of Experience in Problem Solving and Innovative Tool Use in Crows

(2009) Auguste M.P. von Bayern et al.   CURRENT BIOLOGY

Rooks Use Stones to Raise the Water Level to Reach a Floating Worm

(2009) Christopher David Bird et al.   CURRENT BIOLOGY

Selection of Effective Stone Tools by Wild Bearded Capuchin Monkeys

(2009) Elisabetta Visalberghi et al.   CURRENT BIOLOGY

Cognitive Processes Associated with Sequential Tool Use in New Caledonian Crows

(2009) Joanna H. Wimpenny et al.   PLoS One

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

(2009) C. D. Bird et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Cooperative problem solving in rooks (Corvus frugilegus)

(2008) A. M Seed et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

Do New Caledonian crows solve physical problems through causal reasoning?

(2008) A.H Taylor et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

Mirror-Induced Behavior in the Magpie (Pica pica): Evidence of Self-Recognition

(2008) Helmut Prior et al.   PLOS BIOLOGY