The behaviour and evolution of cache protection and pilferage

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Food stealing in birds: brain or brawn? (2007, background): “These studies have revealed surprising flexibility in protection behaviours by potential hosts (e.g. food caching corvids, reviewed in Dally et al. 2006) and kleptoparasitic tactics (e.g. ravens act inconspicuously while watching conspecifics caching food, Bugnyar & Kotrschal 2002; pigs follow and…”
Scatter hoarding by the Central American agouti: a test of optimal cache spacing theory (2009, unknown): “So-called scatter hoarders deal with this risk by spreading their reserves over numerous caches that are spaced out into such a low density that they cannot be efficiently exploited by cache robbers (Dally et al. 2006).”
Social cognition by food-caching corvids. The western scrub-jay as a natural psychologist (2007, background): “Cachers also appeared to differentiate between the relative risk the subordinate and dominant birds posed to their caches, as re-caching levels were highest after caching in view of a dominant bird (Dally et al. 2006a).”