Damien studies the evolutionary ecology of social and collective behaviour in wild vertebrates. He graduated with degrees in Microelectronic Engineering and Computer Science. His first job was making steel, which was followed by a research position at the CSIRO (Australia) investigating the potential role of bioenergy and biofuels in mitigating greenhouse gas emissions and climate change. Damien joined the Edward Grey Institute of Field Ornithology (EGI) at the University of Oxford as a DPhil student in 2010. His thesis investigated the role of individual decision-making in social structure and collective animal behaviour within and across species. He then spent one and a half years as a postdoctoral researcher working across several projects: one which investigated the spread of innovations and establishment of culture in wild great tits (at the EGI) and a second which examined collective behaviour and group decision-making in wild baboons (at the Smithsonian Tropical Research Institute and the University of California Davis). In 2015, Damien started as a Principal Investigator at the Max Planck Institute for Ornithology in Konstanz, Germany. In late 2019, Damien was awarded a prestigious ERC Starting Grant to study the Ecology of Collective Behaviour in his vulturine guineafowl system.