Police have discovered the smashed up paint cans on a crossing in Castlemaine to be the work of the notorious street artist Banksy.

His works of political and social commentary have been featured on streets, walls, and bridges of cities throughout the world and now Castlemaine.

Police thought a bird had diarrhea but discovered after doing the touch and taste test of his signature was indeed the work of Banksy.

Art Critics believe the vandalism is a protest to supermarkets sellings hot cross buns right after Christmas. “Using a crossing to protest hot cross buns is genius” said one critic.