"Birds given low doses of the pain killer Fentanyl produce 'gregarious' song that 'sounds like free-form jazz', a study shows.
Researchers from the University of Wisconsin, Madison, theorised that when birds sing, opioids are produced in their brains that give them pleasure.
To prove their theory they gave starlings a doze of Fentanyl - an opioid used as a pain killer and a recreational drug - and then listened to their song.
They found that when birds sing for pleasure, rather than to mark out territory or to find a mate, the singing is 'gregarious' and sounds like jazz.'"
https://www.dailymail.co.uk/sciencetech/article-8665815/Starlings-treated-low-doses-FENTANYL-produce-songs-like-free-form-jazz.html
Original study here:
https://www.nature.com/articles/s41598-020-67684-1
Researchers from the University of Wisconsin, Madison, theorised that when birds sing, opioids are produced in their brains that give them pleasure.
To prove their theory they gave starlings a doze of Fentanyl - an opioid used as a pain killer and a recreational drug - and then listened to their song.
They found that when birds sing for pleasure, rather than to mark out territory or to find a mate, the singing is 'gregarious' and sounds like jazz.'"
https://www.dailymail.co.uk/sciencetech/article-8665815/Starlings-treated-low-doses-FENTANYL-produce-songs-like-free-form-jazz.html
Original study here:
https://www.nature.com/articles/s41598-020-67684-1