{"fact":"Crows can learn to avoid places they associate with danger, like where they've seen a dead crow.","context":"Lasting memories of associated dangers cause crows to avoid places where dead crows have been observed and to mob people seen near dead crows, which suggests that managers can manipulate the occurrence of corvids that prey upon rare species by deploying effigies or scarecrows that represent individuals previously associated with deadly scenes.","source":"John M Marzluff; Kaeli N Swift, Connecting animal and human cognition to conservation, 10.1016/j.cobeha.2017.04.005","index":376}