I came on board the team after the first iteration of the coop and was particular involved in the design and production of bespoke ankle bracelets, 3D printed in flexible plastic, containing a small RFID label. The chicken wore this on its ankle (instead of its regular ID tag). We built an RFID reader in the base of the coop. When a chicken approached, we could identify which chicken was in which coop at any time. When an egg was laid, it passed and tripped a laser at the rear of the coop, and was stored in chronological order in an egg-collect tray. Therefore we could tag a time stamp of the egg with the chicken RFID reading.