Posted on October 14, 2015 In certain areas of Australia, sulphur-crested cockatoos can be very quite a few, and may cause damage to cereal and fruit crops and freshly planted tree seedlings, and also delicate timber on houses and out of doors furniture. Trevor suggests: Friday 29th September, 2006 at https://sulphurcrestedcockatoolif11122.blog2news.com/36719735/the-basic-principles-of-sulphur-crested-cockatoo-taxonomy