With estimated populations of 600,000 birds in Central Europe, Black Sea and Mediterranean and 250,000 birds in Northeast/Northwest Europe, the Common Pochard remains a familiar species to many waterbird counters and bird watchers across Europe and North Africa. However, there is growing concern over its conservation status. Now listed as Vulnerable on the European Red List of Birds and the global IUCN Red List, numbers have been falling in both European populations, which must mean either survival or productivity is decreasing (i.e. more birds are dying or fewer young are being produced). In order to improve our knowledge of the population structure of Common Pochard, the Duck Specialist Group is undertaking an assessment of the sex ratio of both European populations in January 2016.