Common ravens raid arctic fox food caches

@article{Careau2006CommonRR,
  title={Common ravens raid arctic fox food caches},
  author={Vincent Careau and Nicolas Lecomte and Jean‐François Giroux and Dominique Berteaux},
  journal={Journal of Ethology},
  year={2006},
  volume={25},
  pages={79-82}
}
Cache recovery is critical for evolution of hoarding behaviour, because the energy invested in caching may be lost if consumers other than the hoarders benefit from the cached food. By raiding food caches, animals may exploit the caching habits of others, that should respond by actively defending their caches. The arctic fox (Alopex lagopus) is the main predator of lemmings and goose eggs in the Canadian High Arctic and stores much of its prey in the ground. Common ravens (Corvus corax) are not… 
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