Hi @marc-allaria we would be glade if you can post in our community, but please add location, date of observation, species and if possible link to inaturalist.org or other such specialised server. I noticed that you have nice web full of photos (and yes birds 😀 ) I believe it's unfortunate not to utilise a significant number of observations. Naturally, everyone has their own views on this matter, and it does require additional effort.