Active Diet Selection or Passive Reflection of Changing Food Availability: The Underwater Foraging Behaviour of Canvasback Ducks

Ball, J. P. (1990). Active Diet Selection or Passive Reflection of Changing Food Availability: The Underwater Foraging Behaviour of Canvasback Ducks. In Behavioural Mechanisms of Food Selection (pp. 95–109). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-75118-9_6