Bretagne :
https://gmb.bzh/wp-content/uploads/2015/11/Cle_micro_GMB_V6.pdf
Benelux :
https://www.afblum.be/bioafb/clecrane/clecrane.htm
Aquitaine :
http://files.biolovision.net/www.faune-aquitaine.org/userfiles/FAPublications/0017-FA2011.pdf
Limousin :
https://atlasmam.fauneauvergnerhonealpes.org/wp-content/uploads/2017/12/Epops-n%C2%B044.pdf