Mourning doves have been regular visitors to the areas around our bird feeder whenever we've had one here in the US. However, they are usually on the ground underneath it clearing up he dropped seeds and having the occasional face-off with a squirrel. Sometimes one will land on top of the roof and look a bit clueless about how to get to the food within.
Yesterday, Exile #3 said that she had seen one actually on the appropriate part of the feeder and we joked that it would tell all its friends the secret.
Well...this happened today:
Who knows what else they may be capable of.