This article is not about parrots but about trained rooks, a crow 'cousin' found in Europe and Asia [the English name comes from their vocalizations], that were taught to pick up trash like cigarettes butts and such from a park but training is training, right? And I loved the fact that they did not only got a clean park but are also teaching people to pick up after themselves because, if a bird can do it, a person should be able, too!
https://www.kansascity.com/news/nation- ... 09500.html