Neophobia affects choice of food-item size in group-foraging common ravens (Corvus corax)

  title={Neophobia affects choice of food-item size in group-foraging common ravens (Corvus corax)},
  author={Maartje Kijne and Kurt Kotrschal},
  journal={acta ethologica},
Abstract. Individuals foraging in groups should develop behavioural tactics to optimise their gain. In novel feeding situations, predation risk and pressure of kleptoparasites may be particularly high and hence may constrain optimal foraging. To create a novel feeding situation, we offered common ravens (Corvus corax) equal numbers of either small (40 g) or large (160 g) pieces of meat on successive days, always in combination with the same novel object. During the first weeks, when ravens were… 
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