Crows in Yellowstone National Park exhibit far more remarkable abilities than previously understood by scientists. Recent research reveals that these birds don’t trail wolves for immediate prey but instead use their memory to anticipate where predators are most likely to make a kill.
The study, titled “Ravens anticipate wolf kill sites across wide scales,” was published in the renowned journal Science. The lead author is Dr. Matthias-Claudio Loreto from the Max Planck Institute for Animal Behavior.
For years, scientists believed that ravens merely followed wolf packs to access fresh prey quickly. However, new findings suggest a more intricate behavior: the birds develop a “map” of frequent wolf hunting areas and revisit these locations periodically.
Dr. Loreto states, “Crows can fly six hours non-stop directly to a roosting site.”
Conducted in Yellowstone National Park, the study involved tracking the movements of 69 crows with GPS devices and 20 wolves with tracking devices over two and a half years.
The findings surprised even the researchers. Throughout the study period, only one clear instance was documented where a crow followed a wolf over a kilometer.
Instead, the birds consistently visited areas where predators frequently killed elk, bison, and deer. Some crows traveled up to 155 kilometers in a day, following almost straight routes to potential feeding sites.
“A single hunt is unpredictable, but over time, certain parts of the territory become more productive. The crows clearly use this pattern to their advantage,” Loreto explains.
According to the researchers, this is further evidence of corvids’ extraordinary intelligence, which has long impressed scientists with their abilities to remember faces, solve complex tasks, and use tools.
Thus, when wolves hunt, crows don’t just follow them—they already know where to wait.
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