OK, so we don't know exactly what they're saying, though I suspect that at least some of the time they are yelling, "Give me a peanut, human!" But this fantastic video from ornithologist Kevin McGowan helps you recognize the difference between crow and raven calls, as well as what they could mean.
Government agencies have looked into using animals as secret agents, and have even wired up a cat to try their luck. But I think coolest-looking spy animal ever must have been a raven.
Maybe mature, adult relationships really are for the birds after all. Ravens are most successful at finding food when they join large gangs of thirty or more birds, but this consistently proves to be too stressful - yes, stressful - for our feathered friends. Instead, they decide to pursue a less efficient, but much…