{"fact":"Crows, unlike humans and chimpanzees, don't get a boost in visual discrimination from extra context.  In fact, adding more visual information actually makes it harder for them to pick out a target shape.","context":"In contrast to the facilitative effect of congruent contexts we previously reported in chimpanzees, the same contexts disrupted target localization performance in both pigeons and crows.","source":"Kazuhiro Goto; Shigeru Watanabe, The whole is equal to the sum of its parts: Pigeons (Columba livia) and crows (Corvus macrorhynchos) do not perceive emergent configurations, 10.3758/s13420-020-00413-w","index":395}