Unique beak evolved with tool use in New Caledonian crow | Cornell Chronicle
Cameras capture never-before-seen footage of wild crows building tools - The Washington Post
Tool use comes naturally to crows
Crafty New Caledonian Crows Can Assemble Tools | Smart News| Smithsonian Magazine
Tool Use – Barbara C. Klump
New Caledonian crows can create compound tools | Max-Planck-Gesellschaft
Crows share tricks of the trade
Tool-Making Crows Are Even Smarter Than We Thought | Nat Geo Wild - YouTube
Clever Crows Use Tools in New Way | WIRED
New Caledonian crows can create tools from multiple parts | University of Oxford
Inventive crows caught on camera making tools - CSMonitor.com
Wild New Caledonian crows possess tool-craft talent - BBC News
To lift a crow's mood, give it a toolkit
New Caledonian crows make and use a range of tool types. The tools... | Download Scientific Diagram
Like chess players, these crows can plan several steps ahead
Crows really enjoy using tools, researchers find - ABC News
After Using Tools, Crows are Happier and Behave More Optimistically: 'The pleasure of accomplishment'
Hawaiian crows show their tool-using smarts | Science | AAAS
Making tools gives crows a big food boost | Ars Technica
New Caledonian Crows Behave Optimistically after Using Tools - ScienceDirect
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
Geometry of tool-holding in NC crows.(a) NC crows often hold tools... | Download Scientific Diagram
Tool use to crow about
New Caledonian crows keep 'valuable' hooked tools safer than basic non-hooked tools | eLife
Like humans, crows are more optimistic after making tools to solve a problem — Harvard Gazette
ScienceShot: Tool-Using Crows Eat Well | Science | AAAS
Using Tools Puts Crows in a Good Mood | Inside Science
Beak or Tool | California Academy of Sciences
Unedited videos reveal the sophisticated tool-using behavior of Hawaiian crows | Ars Technica
