Davide De Rosa is an ornithologist with particular expertise in the ecology, migration and population dynamics of birds in Italy, especially in southern Italy and Sardinia. In recent years, his studies have focused on Lanner Falcons and Red Kites, and on the impacts of climate change on bird communities. He is also interested in relationships between pollution and the physiology of birds in agricultural landscapes. He is a ringer, a data collector for the Italian Ornithological Monitoring and for IWC (International Waterfowl Census). He has collaborated in several bird ringing projects in Italy and abroad, and organises birdwatching tours in Sardinia.