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The testing of intelligence in birds is therefore usually based on studying responses to sensory stimuli. The corvids ( ravens , crows , jays , magpies , etc.) and psittacines ( parrots , macaws , and cockatoos ) are often considered the most intelligent birds, and are among the most intelligent animals in general.
The following are two lists of animals ordered by the size of their nervous system.The first list shows number of neurons in their entire nervous system. The second list shows the number of neurons in the structure that has been found to be representative of animal intelligence. [1]
Results from this study suggest that current evidence for general intelligence is weak in non-human animals. [129] The general factor of intelligence, or g factor, is a psychometric construct that summarizes the correlations observed between an individual's scores on various measures of cognitive abilities.
Magpies are birds of various species of the family Corvidae.Like other members of their family, they are widely considered to be intelligent creatures. The Eurasian magpie, for instance, is thought to rank among the world's most intelligent creatures, [1] [2] and is one of the few nonmammalian species able to recognize itself in a mirror test. [3]
The birds were tested on their ability to distinguish benign from malignant human breast histopathology images and could even apply what they had learned to previously unseen images. However, when faced with a more challenging task, they reverted to image memorisation and thus showed little generalisation to novel examples.
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The book explores birds as thinkers (contrary to the cliché "bird brain") in the context of observed behavior in the wild and brings to it the scientific findings from lab and field research. [ 2 ] New research suggests that some birds, such as those in the family corvidae , can rival primates and even humans in forms of intelligence .
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