I think it was Martin Butterfield who wrote:
Dear Ancient Twitcher
The Canberra Indian Myna Action Group has done an excellent job of stopping the increase of the pests in Canberra . However as another ancient twitcher said quite a few years ago "They'll never get rid of
the Mynas until they get rid of the stables at Queanbeyan and Canberra race tracks."
Common Mynas can be a menace to horse owners. I understand they will attempt to nest in the horses’ manes thereby driving the neddies nuts. But there’s a solution readily available, just sprinkle yeast (brewers or bakers, both are
equally effective) through the manes, and presto! the birds depart. In support of this claim I refer you to the writings of Rudyard Kipling, viz.
Oh, yeast is yeast, and nest is nest, and never the mane shall tweet.
John Layton
Holt.