New Caledonian crows can create compound tools | Max-Planck-Gesellschaft
Crows share tricks of the trade
How Crows Use Tools to Solve Problems
Hawaiian crows show their tool-using smarts | Science | AAAS
New Caledonian crows can create tools from multiple parts | University of Oxford
Inventive crows caught on camera making tools - CSMonitor.com
Tool use to crow about
Wild New Caledonian crows possess tool-craft talent - BBC News
New Caledonian Crows Learn by Doing – The Wire Science
Tool Use Puts New Caledonian Crows in a Good Mood/ Curr. Biol., Aug. 1, 2019 (Vol. 29, Issue 16) - YouTube
Hawaiian Crows Join Tool-Users Club - The New York Times
Using Tools Puts Crows in a Good Mood | Inside Science
Geometry of tool-holding in NC crows.(a) NC crows often hold tools... | Download Scientific Diagram
Clever Crows Use Tools in New Way | WIRED
New Caledonian crows' clearly profit from the care and craftsmanship they put into their tools – A new zoology thing for curious kids – 2 New Things
After Using Tools, Crows are Happier and Behave More Optimistically: 'The pleasure of accomplishment'
Cameras capture never-before-seen footage of wild crows building tools - The Washington Post
Crows surprise researchers with advanced tool use | Research | The Guardian
Like humans, crows are more optimistic after making tools to solve a problem — Harvard Gazette
Making tools gives crows a big food boost | Ars Technica
Can Crows Make Mental Pictures of Tools? - The New York Times
Tool use comes naturally to crows
Compound tool construction by New Caledonian crows | Scientific Reports
New Caledonian Crows Behave Optimistically after Using Tools - ScienceDirect
