Extreme events in the flight of bird flocks

Istvan Daruka

Eötvös University, Department of Theoretical Physics, Budapest, Hungary

Starling flocks exhibit arresting features of self-organization including collective turning, landing, and anti-predatory response. Together with my field observations, I introduce a phenomenological model that was developed in order to understand their collective landing. This highly coherent and inherently non-linear process can be considered as an extreme event in the flight of bird flocks. The presented model offers a possible mechanism of how the small landing intent fluctuations can get non-linearly amplified in a coupled, self-organized way that lead to the landing of the whole flock. Finally, I discuss the challenges of physical modeling.