Motus is a distrbuted network of ground stations for tracking birds and other species (like bats!) for research - they also use CTT tags for tracking (along with tags from another company called Lotek - https://www.lotek.com)
Motus is also used for bats and insects! The butterfly project the parent linked to is using Motus: “ This year, new receivers have been added to Motus towers around the Southwest as well as special nodes to pick up their signals.”