New Caledonian crows attend to multiple functional properties of complex tools | Philosophical Transactions of the Royal Society B: Biological Sciences
Crafty crows can create tools fit for purpose | Discover Wildlife
Tool manufacture by naive juvenile crows | Nature
Like humans, crows are more optimistic after making tools to solve a problem – Harvard Gazette
Tool use comes naturally to crows
Crows surprise researchers with advanced tool use | Research | The Guardian
Crows make tools by design, not by rote
New Caledonian Crows Keep Their Favorite Tools Safe | Inside Science
Genius crow's tool-bending behaviour may be natural to its kind | New Scientist
New Caledonian Crows Have Tools for Healthy Diets - The New York Times
New Caledonian Crows Learn by Doing
Using Tools Puts Crows in a Good Mood | Inside Science
After Using Tools, Crows are Happier and Behave More Optimistically: 'The pleasure of accomplishment'
Bird brains? Tool-making crows show they really are cleversticks
Astonishing' New Caledonian crows make complex tools | Financial Times
New Caledonian crows make and use a range of tool types. The tools... | Download Scientific Diagram
New Caledonian crows keep 'valuable' hooked tools safer than basic non-hooked tools | eLife
Study links evolution of New Caledonian beak with tool use - UPI.com
Hawaiian Crows Show Talent for Tool Use | Sci.News
Clever Crows Use Tools in New Way | WIRED
Can Crows Make Mental Pictures of Tools? - The New York Times
Scientists Have Found Another Crow That Uses Tools - The Atlantic
Hawaiian crows show their tool-using smarts | Science | AAAS
Making tools gives crows a big food boost | Ars Technica
Cameras capture never-before-seen footage of wild crows building tools - The Washington Post
New Caledonian crows can create compound tools | Max-Planck-Gesellschaft
Tool Use Puts New Caledonian Crows in a Good Mood/ Curr. Biol., Aug. 1, 2019 (Vol. 29, Issue 16) - YouTube
