The Blackish Oystercatcher occurs along the Pacific coast of South America. It searches rocky shores and beaches for shellfish and other prey and breeds near the coast.
It has dark plumage, a long red bill, and thick pale pinkish legs.
It searches for shellfish and other small animals on intertidal rocks and breeds on coastal rocks or sandy ground.
It is often seen alone or in pairs, sometimes in small flocks when resting. It also associates with Magellanic and American Oystercatchers.
It gives loud piping whistles similar to those of the American Oystercatcher.
An extinction-risk assessment has not been added yet.