Passionate about ornithology since the early 80's, Jean-Sebastien started working professionally for nature conservation in 2008 when he led the citizen science programmes of the association Natagora on butterflies and birds in the gardens. He was then responsible in Natagora for the Interreg project SAPOLL - Save our pollinators for 4 years (2016-2020). He is currently responsible for the validation of data on the Natagora naturalist data collection portal observations.be