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2. New Caledonian crow - Wikipedia

   en.wikipedia.org/wiki/New_Caledonian_crow

   Tool use in crows is a combination of natural ability and schooling by other crows – LiveScience.com (October 31, 2006) BBC news website item about the New Caledonian Crow, includes video footage of tool use (August 16, 2007) Crow bends wire on purpose to lift bucket from glass tube (Nat'l Geo link no longer contains video).—YouTube

3. Tool use by non-humans - Wikipedia

   en.wikipedia.org/wiki/Tool_use_by_non-humans

   Tool use has been observed in a non-foraging context, providing the first report of multi-context tool use in birds. Captive New Caledonian crows have used stick tools to make first contact with objects that were novel and hence potentially dangerous, while other individuals have been observed using a tool when food was within reach but placed ...

4. Bird intelligence - Wikipedia

   en.wikipedia.org/wiki/Bird_intelligence

   However, the use of a rock manipulated using the beak to crack an ostrich egg would qualify the Egyptian vulture as a tool user. Many other species, including parrots, corvids, and a range of passerines, have been noted as tool users. [1] New Caledonian crows have been observed in the wild using sticks with their beaks to extract insects from ...

5. Crows Are Self-Aware Just Like Humans, And They May Be as ...

   www.aol.com/crows-self-aware-just-humans...

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6. Corvidae - Wikipedia

   en.wikipedia.org/wiki/Corvidae

   New Caledonian crows (Corvus moneduloides) are notable for their highly developed tool fabrication. They make angling tools of twigs and leaves trimmed into hooks, and then subsequently use the hooks to pull insect larvae from tree holes. Tools are engineered according to task, and apparently, also to learned preferences.

7. Corvus - Wikipedia

   en.wikipedia.org/wiki/Corvus

   One species, the New Caledonian crow, has also been intensively studied recently because of its ability to manufacture and use tools in the day-to-day search for food. On 5 October 2007, researchers from the University of Oxford presented data acquired by mounting tiny video cameras on the tails of New Caledonian crows. They pluck, smooth, and ...

8. Crows can count up to four, a new study finds - AOL

   www.aol.com/news/crows-count-much-same-way...

   Crows can vocally count up to four. The intelligent birds recognize and react to numbers in a process similar to that of human cognition, according to a new study.

9. Comparative cognition - Wikipedia

   en.wikipedia.org/wiki/Comparative_Cognition

   Tool use observed in New Caledonian crows. Corvids have received a lot of attention from the comparative cognition community in the twenty-first century, specifically the species of corvids known as New Caledonian crows. Several populations of this species, located on islands in the New Caledonian archipelago have demonstrated the ability to ...