Charlotte Forum Role: ParticipantActive Since: February 1, 2020Topics Started: 0Replies Created: 1 Profile Topics Started Replies Created Forum Replies Created Viewing 1 post (of 1 total) CharlotteParticipant I'm surprised you don't use microchips to follow the birds in reply to: Crow Research Techniques #954092 Viewing 1 post (of 1 total)