Fig. 2. First choice of color (A) at the feeder, and (B) at the nest. Graphs plot the proportion of bees (out of 30) that made the correct choice in each trial. The dashed line represents no choice or chance expectation (33%). Solid gray line divides phase 1 and 2. Phase 1 is represented by trials -8 to -1, and phase 2 by trials 1 to 8. The last eight trials are graphed from phase 1.