Coefficients of GLMMs testing the effect of environmental variables (bottom temperature, acoustic backscatter, northward and eastward flow speeds) collected by the two ADCPs 13 and 2 m above the seafloor between March and December 2020 on feeding activity. Data collection date and time nested within months as well as individual colony were included as random effects in the models to account for temporal autocorrelation and behavioural differences between colonies, respectively. Asterisks indicate significant results: *p-value < 0.05; **p-value < 0.01; ***p-value < 0.001.