New publication: Guide to the sex and age of European ducks

By Jean-Baptiste Mouronval (ONCFS), Matthieu Guillemain (ONCFS) and Richard Hearn (WWT) Nice to see this new high-quality publication by the Office National de la Chasse et de la Faune Sauvage (French National Office of Hunting and Wildlife) in its English version on the Duck Specialist Group website. I had only a quick look through it, […]