Fig. 2. Mean (±SE) effects of initial behavior (perched, black bars; foraging, white bars) within sites on (a) alert distance, and (b) flight-initiation distance of Belding’s Savannah Sparrows. Intensity of recreational activities (e.g., pedestrians) varied among sites: Los Cerritos (higher intensity), Bolsa Chica (intermediate intensity), Anaheim Bay (lower intensity).