Higher Cognitive Abilities in Birds: A Comparative Evolutionary Analysis

The pigeon as a machine: Complex category structures can be acquired by a simple associative model

“…8 The pigeon’s excellent category learning and transfer performance clearly merit the label “conceptual” according to most theorists 9 , 10 , 11 , 12 , 13 , 14 and suggest that we should accord pigeons and other birds far greater respect than they customarily receive. 15 , 16 …”