Редактирование: Cognition in nonhuman animals (раздел)

== Birds ==

Alex the grey parrot and zero

At least one individual, [Alex], was observed practicing words when alone.<ref name="birds-alex-practice">Wise, Steven M. (2002). <i>Drawing the Line</i>. Cambridge, Massachusetts: Perseus Books. p. 93. ISBN 0-7382-0340-8.</ref>

Magpie grieving rituals

New Caledonian crows (<i>Corvus moneduloides</i>) demonstrate simple tool use, and even modifying flexible material (such as leaves and wire) into hooks.<ref name="corvids-tools-1">Alex A. S. Weir, Jackie Chappell, Alex Kacelnik.  (August 2002).  "Shaping of Hooks in New Caledonian Crows".  <i>Science</i>.  <b>297(5583):</b> 981. doi:[https://doi.org/10.1126/science.1073433] [https://www2.cs.arizona.edu/projects/wonac/papers/weir-2.pdf PDF mirror]</ref>  Common ravens (<i>Corvus corax</i>) have been observed anticipating observation by unseen competitors when caching food,<ref name="ravens-visual-access">Thomas Bugnyar, Stephan A. Reber & Cameron Buckner.  (February 2016).  "Ravens attribute visual access to unseen competitors".  <i>Nature Communications</i>.  doi:[http://dx.doi.org/10.1038/ncomms10506]</ref> which has been argued to be evidence of a theory of mind.<ref name="ravens-theory-of-mind">[https://www.newscientist.com/article/2076025-ravens-fear-of-unseen-snoopers-hints-they-have-theory-of-mind/ Ravens' fear of unseen snoopers hints they have theory of mind], Sam Wong, <i>New Scientist</i>, 2016-02-02</ref>

Eurasian magpies (<i>Pica pica</i>) pass the mirror self-recognition test.

Monk Parakeets surviving in Chicago despite climate

<i>Notable individuals</i>:  [[Alex]], [[Cosmo]], [[N'kisi]], [[Sparkie Williams]]
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