the original link i had showed them worn by racing pigeons with the aid of a small harness . thats the only reason i thought they may have been of interest ?
https://www.rpra.org/bhw-show-of-the-year-2019/?fbclid=IwAR2HodXi0x3Suq2kLsMPyJkK43AfsZz8uLq29j1FgZ3tpXG0HeoJu46FHC0 hope this works for you , i have just been viewing myself and was about to post it up
saw these and wondered if they could be used ? only first part of the video is really relevant ? https://hypetop1.com/products/cube-hd-1080p-lifestyle-action-video-camera-ii-with-night-vision
ive a few "old soldiers" here .a 15 yr old cock from the year i started , a son of his at 12 yr old . a 10 yr old and , 2 bred here at 8 yr old .all retired racers .