Abstract
Introduction Food dunking, or dipping food in water (Morand-Ferron et al. 2004), is a behaviour that has been noted across a range of bird species (Purser 1959; Morand-Ferron et al. 2004; Dearborn & Gager 2009; Kasper 2012). Dunking can be an important food-processing behaviour because it might allow animals to include items in their diets that would be otherwise unpalatable
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