https://www.permaculturedesign.fr/nichoir-chauve-souris-maison-abri/
https://www.bats.org.uk/our-work/buildings-planning-and-development/bat-boxes/putting-up-your-box
https://www.lpo.fr/la-lpo-en-actions/mobilisation-citoyenne/refuges-lpo/tutoriels/comment-fabriquer-un-gite-de-facade-pour-les-chauves-souris