Vision device for birds

Nice article in the the NY Times about a device placed on birds to research blinking patterns:

https://www.nytimes.com/2020/12/19/science/birds-blink-flight.html?campaign_id=9&emc=edit_nn_20201220&instance_id=25246&nl=the-morning&regi_id=56503521&segment_id=47427&te=1&user_id=ed10e7ccfa3274108dfcdd96617dc1a9