nah - 28s are green, yellow, blue n black. Pests - my garndfather used to shoot em down on his farm. (but then he also used to shoot wedge tail eagles. Different times for sure).
Theres more lorikeets around WA these days, they were introduced - not pests but often mistaken for 28s.
There are lots and pink and grey galahs and they can be a bit of a pest (they used to strip my parents almond tree of every fucken nut in about half a day) but its the white galahs (they may be corellas?) that are the real problem - huge flocks of them setting in urban and country areas.