Wild New Caledonian crows possess tool-craft talent - BBC News
After Using Tools, Crows are Happier and Behave More Optimistically: 'The pleasure of accomplishment'
Tool-Making Crows Are Even Smarter Than We Thought | Nat Geo Wild - YouTube
Crafty New Caledonian Crows Can Assemble Tools | Smart News| Smithsonian Magazine
New Caledonian crows can create tools from multiple parts | University of Oxford
Tool use to crow about
Cameras capture never-before-seen footage of wild crows building tools - The Washington Post
Hawaiian Crows Join Tool-Users Club - The New York Times
How Crows Use Tools to Solve Problems
Like humans, crows are more optimistic after making tools to solve a problem — Harvard Gazette
ScienceShot: Tool-Using Crows Eat Well | Science | AAAS
Tool Use Puts New Caledonian Crows in a Good Mood/ Curr. Biol., Aug. 1, 2019 (Vol. 29, Issue 16) - YouTube
Crows really enjoy using tools, researchers find - ABC News
Hawaiian crows show their tool-using smarts | Science | AAAS
Tool use comes naturally to crows
Beak or Tool | California Academy of Sciences
Unedited videos reveal the sophisticated tool-using behavior of Hawaiian crows | Ars Technica
New Caledonian crows keep 'valuable' hooked tools safer than basic non-hooked tools | eLife
Can Crows Make Mental Pictures of Tools? - The New York Times
Clever Crows Use Tools in New Way | WIRED
Crows share tricks of the trade
New Caledonian Crows Behave Optimistically after Using Tools - ScienceDirect
