They can be annoying only because they are brilliant. This is a link to data from a research project on the use of tools by ravens. You have to scroll down past the data to get to the videos, but the videos are progressively more impressive. These birds don't take long to process the information and solve their problem. Hope y'all enjoy this.
http://www.pnas.org/content/suppl/2...DCSupplemental/0901008106SI.pdf#nameddest=SV1
http://www.pnas.org/content/suppl/2...DCSupplemental/0901008106SI.pdf#nameddest=SV1
