Dataset of Yellow-legged Gull attacks on Slender-billed Gull crèche in Tunisia

This dataset details attacks of Yellow-legged Gulls on chicks of Slender-billed Gull of Sfax Salina (Tunisia). It was collected in 2011. The dataset includes the week of the study (data were collected over 6 successive weeks), the age of the chicks in the crèche (in weeks), the presence of disturbance (0=no disturbance, 1=Dog, 2=Human) and then the number of attacks or predation events.