 When storers are experimentally prevented from leaving the vicinity of the cache, pilferers first search at places other than the cache sites.When ravens ("Corvus corax") witness a conspecific making caches, to pilfer those caches they (1) delay approaching the cache only when in the presence of the storer, and (2) quickly engage in searching away from the caches when together with dominant storers.These behaviours raise the possibility that ravens are capable of withholding their intentions, and also providing false information to avoid provoking the storer's aggression to protect its cache.