Ravens.
I am told by my daughter that these aren't ravens, they are rooks, but they're both brilliant.
This is a link to some research where they look at the corvids' ability to make and use tools. If you want to see the videos, you have to scroll down past all the data
http://www.pnas.org/content/suppl/2...DCSupplemental/0901008106SI.pdf#nameddest=SV1
I am told by my daughter that these aren't ravens, they are rooks, but they're both brilliant.
This is a link to some research where they look at the corvids' ability to make and use tools. If you want to see the videos, you have to scroll down past all the data
http://www.pnas.org/content/suppl/2...DCSupplemental/0901008106SI.pdf#nameddest=SV1