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Birds can also have twice the neuron packing density of primate brains, in some cases similar to the total number of neurons in much larger mammal brains, for a higher unit mass per volume. This suggests that the nuclear architecture of the avian brain has more efficient neuron packing and interconnections than mammal brains.
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] The human brain contains 86 billion neurons, with 16 billion neurons in the cerebral cortex. [2] [1]
Among the birds, corvids and parrots have typically been found to perform well on human-like tasks. [171] Some octopodes have also been shown to exhibit a number of higher-level skills such as tool use, [94] but the amount of research on cephalopod intelligence is still limited. [172] Baboons have been shown to be capable of recognizing words ...
Pigeons can remember large numbers of individual images for a long time, e.g. hundreds of images for periods of several years. All these are capacities that are likely to be found in most mammal and bird species. In addition pigeons have unusual, perhaps unique, abilities to learn routes back to their home from long distances.
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]
In total there are about 10,000 species of birds described worldwide, though one estimate of the real number places it at almost twice that. [1] The order passerines (perching birds) alone accounts for well over 5,000 species.
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As of January 9th 2025 according to the iGoTerra website, there are 18 birders who have added 9,000 or more species of birds to their life lists. An additional 15 birders have added at least 8,000 species of life birds. Note: all known sources of bird species life list data are self-reported. Birders with over 8,000 species include: