The article needs pictures and a better explanation of the behaviour that could be considered aggressive.
Helpful article! An update on how the challenge technique worked over time would make the article better.
It's an ok article. It deals with stopping the aggression with humans, but not with other birds. 1 week trial seems rather short & the improvement in behaviour is not detailed.
Good article, and a reminder to all of us that the fellas aren't the only ones who need a little bit of retraining now and again!
