Individual behavior procedure with copying behavior shown in dark gray. pir resource preference, preference expectation, N individual selectivity during food choice, D distance unit (length of one cell in 2D grid, scaled to 1 m), C copy preference. Note that copying occurs in parallel to other behaviors, i.e., while individuals check for safety, they may observe other individuals and remember food types they were eating. When encountering such a food type, C increases the probability of eating that food. Bottom: snapshot (600 by 100 m) showing trajectories of 20 individuals foraging from left to right in a day (varied patches)