Rare flock seeks sewage plant tree change

Five Tawny Grassbirds have been spotted near a Melbourne sewage plant in a rare sighting. (HANDOUT/YARRA VALLEY WATER)

A bird species common in northern NSW but rarely sighted in Victoria has found a home near a Melbourne sewage plant.

Tawny Grassbirds are found scattered mostly in coastal northern Australia and are rarely seen in groups of more than two.