Discovery of species-wide tool use in the Hawaiian crow
Christian Rutz,
Barbara Klump,
Lisa Komarczyk,
Rosanna Leighton,
Joshua Kramer,
Saskia Wischnewski,
Shoko Sugasawa,
Michael Morrissey,
Richard James,
James St Clair,
Richard Switzer,
Bryce Masuda
Sep 15, 2016
Only a handful of bird species are known to use foraging tools in the wild1. Amongst them, the New Caledonian crow (Corvus moneduloides) stands out with its sophisticated tool-making skills2,3. Despite considerable speculation...