Histrionic Capacity of Grey Parrots
نویسندگان
چکیده
منابع مشابه
Cognitive and Communicative Abilities of Grey Parrots
Grey parrots (Psittacus erithacus) solve various cognitive tasks and acquire and use English speech in ways that often resemble those of very young children. Given that the psittacine brain is organized very differently from that of mammals, these results have intriguing implications for the study and evolution of vocal learning, communication, and cognition. For 25 years, I have taught Grey pa...
متن کاملCognitive and Communicative Abilities of Grey Parrots (Psittacus erithacus)
How do we measure avian ‘intelligence’ and communicative capacities? Two decades of study on Grey parrots (Psittacus erithacus) provide more questions than answers. What is intelligence? Can we evaluate nonhumans using human tasks and definitions? Or fairly test nonhuman sensory systems? How do nonmammalian brains process information? Do avian and mammalian cognitive capacities significantly ov...
متن کاملLeading Vet’s Investigation of Bone Deformities in Grey Parrots
In recent years an increasing number of deformed or malnourished hand-reared Grey Parrots are offered for sale in the UK. In many cases neither the breeder nor the purchaser is aware that there is anything wrong with the bird. That is not just sad but frightening – that inexperienced people are producing young parrots which might be crippled for life or have to be euthanised at an early age. Bi...
متن کاملGrey parrots use inferential reasoning based on acoustic cues alone
Our ability to make logical inferences is considered as one of the cornerstones of human intelligence, fuelling investigations of reasoning abilities in non-human animals. Yet, the evidence to date is equivocal, with apes as the prime candidates to possess these skills. For instance, in a two-choice task, apes can identify the location of hidden food if it is indicated by a rattling noise cause...
متن کاملBeak and feather disease virus haemagglutinating activity using erythrocytes from African Grey parrots and Brown-headed parrots.
Psittacine beak and feather disease (PBFD) is a common viral disease of wild and captive psittacine birds characterized by symmetric feather loss and beak deformities. The causative agent, beak and feather disease virus (BFDV), is a small, circular single-stranded DNA virus that belongs to the genus Circovirus. BFDV can be detected by PCR or the use of haemagglutination (HA) and haemagglutinati...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1901
ISSN: 0028-0836,1476-4687
DOI: 10.1038/065127a0