The impacts of a commercial bubble curtain on zoo-housed African penguin (Spheniscus demersus) swimming behavior

Supplementary Material 1. Top-down view of outdoor penguin habitat at Lincoln Park Zoo, modified from Saiyed et al. (2019). The red box denotes the approximate view visible from the Wyze camera. The dashed blue line in the pool denotes the approximate placement of the bubble curtain. The numbered circles denote nest boxes that connect to the indoor portion of the habitat, which penguins had access to 24/7. A north indicator and approximate 1 meter scale are included.

Supplementary Material 2. Model summaries for the best fitting models for each predictor variable (swimming time and maximum number of penguins in the pool).

Supplementary Material 3. Video compilation of African penguins (Spheniscus demersus) at Lincoln Park Zoo interacting with commercially available bubble curtain in the outdoor pool of their habitat.