These raven specialists who made the meat and string-experiment worked in Yellowstone National Park. I´ve been there three times and there are really lots of wonderful things to see. Wolves for example. The raven is not a hunter himself; he has a buddy doing it for him. That buddy is the wolf. The people in Yellowstone wanted to know why these two species were so good friends. The answer was that the ravens gets food and safety and in return the he tell the wolfs where their prey is. The scientists could even see that certain raven individuals were particularly good friends with specific wolf individuals. No wonder wolves are so great hunters when they have eyes in the sky.
Also in myths the reality is confirmed. Oden had his two ravens but he also had two other companions. They were Gere and Freke. Wolves.