Figure 2
From: Testing two competing hypotheses for Eurasian jays’ caching for the future
Top view of the experimental set-up of Experiment 1. Birds could access the three test compartments (A, B, C) from a middle compartment. On each experience trial (Left), the bird had access only to one test compartment (e.g., A in Trial n; B in Trial n+1), and one type of food in powdered form (e.g., Peanuts (P) in Trial n; Macadamia nuts (M) in Trial n+1). The compartment that was accessible and food available rotated respectively on a 3-days cycle and on a 2-days cycle. On the test trial (Right), a bowl containing items of both types of food was placed in the middle compartment and caching trays were placed in all test compartments. Birds could freely move and cache in all compartments.
