Hawaiian crows can use sticks as tools but are nearly extinct | New Scientist
Like chess players, these crows can plan several steps ahead
Using Tools Puts Crows in a Good Mood | Inside Science
Hawaiian crows show their tool-using smarts | Science | AAAS
How Crows Use Tools to Solve Problems
Hawaiian Crows Discovered To Be Handy With Tools | Popular Science
Crows surprise researchers with advanced tool use | Research | The Guardian
Inventive crows caught on camera making tools - CSMonitor.com
New Caledonian Crows Behave Optimistically after Using Tools | Department of Organismic and Evolutionary Biology
New Caledonian crows keep 'valuable' hooked tools safer than basic non-hooked tools | eLife
Beak or Tool | California Academy of Sciences
Tool use to crow about
Wild New Caledonian crows possess tool-craft talent - BBC News
Like humans, crows are more optimistic after making tools to solve a problem – Harvard Gazette
Scientists Have Found Another Crow That Uses Tools - The Atlantic
Hawaiian Crows Show Talent for Tool Use | Sci.News
Tool-Making Crows | PBS LearningMedia
New Caledonian Crows Keep Their Favorite Tools Safe | Inside Science
Compound tool construction by New Caledonian crows | Scientific Reports
Crafty New Caledonian Crows Can Assemble Tools | Smart News| Smithsonian Magazine
Tool use comes naturally to crows
Crows make tools by design, not by rote
