The Australian sulfur-crested cockatoos are pretty smart. They would teach each other how to open heavy bin lids to raid the garbage. I seem to remember they would even team up to do it. There are studies about how this behaviour spread from suburb to suburb in Sydney.[1]

More recently they've figured out how to operate drinking fountains.[2][3]

[1] https://www.smithsonianmag.com/science-nature/cockatoos-lear...

[2] https://www.abc.net.au/news/science/2025-06-04/sydney-sulphu...

[3] https://www.australiangeographic.com.au/nature-wildlife/2025...