Crows really enjoy using tools, researchers find - ABC News
Compound tool construction by New Caledonian crows | Scientific Reports
Making tools gives crows a big food boost | Ars Technica
Cameras capture never-before-seen footage of wild crows building tools - The Washington Post
After Using Tools, Crows are Happier and Behave More Optimistically: 'The pleasure of accomplishment'
Tool Use – Barbara C. Klump
How Crows Use Tools to Solve Problems
Unique beak evolved with tool use in New Caledonian crow | Cornell Chronicle
Using Tools Puts Crows in a Good Mood | Inside Science
Unedited videos reveal the sophisticated tool-using behavior of Hawaiian crows | Ars Technica
ScienceShot: Tool-Using Crows Eat Well | Science | AAAS
New Caledonian crows make and use a range of tool types. The tools... | Download Scientific Diagram
Crows share tricks of the trade
Tool use to crow about
New Caledonian crows keep 'valuable' hooked tools safer than basic non-hooked tools | eLife
Like chess players, these crows can plan several steps ahead
Inventive crows caught on camera making tools - CSMonitor.com
New Caledonian crows can create tools from multiple parts | University of Oxford
New Caledonian Crows Behave Optimistically after Using Tools - ScienceDirect
Wild New Caledonian crows possess tool-craft talent - BBC News
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
Beak or Tool | California Academy of Sciences
