Retired teacher in a small village in the heart of the Northern Vosges, Yves has been passionate about birds and nature for over 50 years. He was president of the Centre for Ornithological Studies of Alsace from 1986 to 1993, and is currently president of the LPO Alsace. He has been administrator of the LPO France since 2015 and has coordinated the survey and publication of the French bird atlas.