Beak or Tool | California Academy of Sciences
Unique beak evolved with tool use in New Cale | EurekAlert!
A Crow That Makes Tools | BirdNote
Tool-Making Crows | PBS LearningMedia
Inventive crows caught on camera making tools - CSMonitor.com
New Caledonian crows attend to multiple functional properties of complex tools | Philosophical Transactions of the Royal Society B: Biological Sciences
Cameras capture never-before-seen footage of wild crows building tools - The Washington Post
Crows make tools by design, not by rote
Tool bending in New Caledonian crows | Royal Society Open Science
Tool use comes naturally to crows
Compound tool construction by New Caledonian crows | Scientific Reports
Can Crows Make Mental Pictures of Tools? - The New York Times
Like chess players, these crows can plan several steps ahead
Making tools gives crows a big food boost | Ars Technica
New Caledonian crows make and use a range of tool types. The tools... | Download Scientific Diagram
Using Tools Puts Crows in a Good Mood | Inside Science
Tool use to crow about
Crows share tricks of the trade
Hawaiian crows can use sticks as tools but are nearly extinct | New Scientist
Crafty Crows Teach Each Other How to Make Tools | The Science Explorer
Tool-Making Crows Are Even Smarter Than We Thought | Nat Geo Wild - YouTube
How Crows Use Tools to Solve Problems
