1 a.c. muni d'un balise GPS.

"This particular GSE is named Pyatnitsa (meaning Friday in Russian) and was equipped with a “Druid” tracker as a nestling on the 21st of July in the Moscow region."

https://www.batumiraptorcount.org/news/2023/12/gps-tagged-greater-spotted-eagle-at-batumi?mc_cid=738901710d