Thanks! Armed with that extra clue (ie New Caledonian) I've just been and looked and learned - fascinating! :) (Betty not only deduced she'd need a hooked tool to get to her objective, she manufactured the tool herself!)
Yes! I've gone and looked at some of that at some point. And there is some interesting follow up research that I can't remember the full details of, but some researcher looked at that, looked at their population of crows that had some environmental pressures similar to the New Caledonian ones, and found similar results.
The article I can find with a quick google (here) says Hawaiian crows.
no subject
Date: 2016-11-02 09:29 am (UTC)no subject
Date: 2016-11-03 10:46 am (UTC)The article I can find with a quick google (here) says Hawaiian crows.