Yes I know these are pest and need to be control. Saw so many post how these birds are eating everyones feed. Fact these eat mostly insects, have thousand get in my peafowl barns, never have I seen any fly from my feeders. More to worry about native birds eating your feed, than these pest. Yes they steal nest from native birds, good thing they are NOT big grain eater. As many as I see around the barns they would eat 50 lbs of grain a day.