Fig. 1.

The proportion of anthropogenic food in the diet of a adult breeding red-winged starlings; and b nestlings on high human presence (HHP) and low human presence (LHP) days at the University of Cape Town. Adults consumed a greater proportion of anthropogenic food on HHP days (model-averaged mean = 0.99 [0.96, 1.00]) than LHP days (model-averaged mean = 0.79 [0.21, 0.98]). Nestlings were fed a greater proportion of anthropogenic food on HHP days (model-averaged mean = 0.40 [0.28, 0.52]) than LHP days (model-averaged mean = 0.15 [0.10, 0.22]). Data collected from 60 focal observations (27 HHP focals and 33 LHP focals) and 82 nest watches (22 HHP nest watches and 60 LHP nest watches). Error bars represent one standard error around the mean