Why are there so many cockatoos?

Suburban Sulphur-crested Cockatoo exploring the exposed fresh timber. Image by Ralph GreenBRISBANE suburbs are alive with the blood-curdling screech of handsome sulphur-crested cockatoos.
Often cursed by residents because of their propensity to eat anything and everything, it's that time of year for cockies to be having babies and raising young.