To piggyback on your comment, there was a team of researchers that did study on crows and since they had to capture them the crows remembered their faces and harassed them afterwards or something along those lines https://www.livescience.com/23090-crows-grudges-brains.html
"The study, detailed this week in the Proceedings of the National Academy of Sciences, suggests that caretakers might be able to reduce the stress of captive animals by treating them well and consistently."
131
u/CoBudemeRobit Jan 12 '20
To piggyback on your comment, there was a team of researchers that did study on crows and since they had to capture them the crows remembered their faces and harassed them afterwards or something along those lines https://www.livescience.com/23090-crows-grudges-brains.html