Noisy miner
The female will lay between two and four eggs in her nest, and food will be bought to the mother and her chicks by quite a few males in the coterie.  Bringing up the chicks is often done by the whole group.  They breed at any time in the year so there are often young noisy miners in the group. The younger birds usually have feathers and face colouring very similar to the adult birds, so it is often difficult to tell the difference.