Cognitive and communicative abilities of Grey parrots
Publication/Journal: Applied Animal Behaviour Science
Keywords: avian animal companion, avian communication, avian intelligence, captive birds, parrot
2006
Grey parrot (Psittacus erithacus) numerical abilities: Addition and further experiments on a zero-like concept
Publication/Journal: Journal of Comparative Psychology
Keywords: animals, cognition, cognition/physiology, concept formation, concept formation physiology, cues, intelligence, male, mathematics, parrots, parrots physiology
2006
Ordinality and inferential abilities of a grey parrot (Psittacus erithacus)
Publication/Journal: Journal of Comparative Psychology
Keywords: animal vocalization, animals, association learning, color perception, comprehension, concept formation, discrimination learning, mathematics, parrots, problem solving, psychophysics, size perception, symbolism, visual pattern recognition
2006
Number Comprehension by a Grey Parrot (Psittacus erithacus), Including a Zero-Like Concept
Publication/Journal: Journal of Comparative Psychology
Keywords: accuracy, comprehension, grey parrot, heterogeneous groups, psittacus erithacus, quantify item sets
2005
Cognitive and communicative capacities of Grey parrots – implications for the enrichment of many species
Publication/Journal: Animal Welfare
Keywords: animal welfare, animal-human communication, avian intelligence, companion animals, computer-based enrichment, grey parrot
2004
Possible levels of animal consciousness with reference to grey parrots (Psittacus erithacus)
Publication/Journal: American Zoologist
Keywords: consciousness, grey parrots, psittacus erithacus
2000
Vocal learning in the grey parrot (Psittacus erithacus): Effects of species identity and number of trainers
Publication/Journal: Journal of Comparative Psychology
Keywords: grey parrot, learning, referential labels, training
2000