Haematopus ater
The Blackish Oystercatcher (Haematopus ater) is a striking, entirely black shorebird found along the Pacific and South Atlantic coasts of South America. Averaging 42-47 cm (16.5-18.5 in) in length with a wingspan of approximately 72-80 cm (28-31.5 in) and weighing 500-700 g (1.1-1.5 lbs), its uniform sooty-black plumage is accented by a robust, bright red-orange bill, stout pinkish-red legs, and a vivid yellow eye encircled by a narrow orange-red ring. This monochromatic appearance distinguis...
Exclusively inhabits rocky coasts, intertidal zones, and coastal lagoons, often exposed to heavy surf. Found from sea-level up to low coastal elevations.
Feeds almost exclusively on marine invertebrates, primarily bivalve mollusks (mussels, clams), limpets, gastropods, and crustaceans. Uses its powerful bill to probe, pry, and hammer open shells.
Blackish Oystercatchers are primarily diurnal, with their foraging activity dictated by tidal cycles, often moving to roost at high tide. They are highly skilled foragers, employing distinct techniques to extract prey: probing soft sediments for worms, prying limpets from rocks, and hammering ope...
The Blackish Oystercatcher is an endemic resident along the temperate coasts of South America, primarily inhabiting the Pacific shoreline from central Peru southward through Chile to Tierra del Fuego. Its distribution extends around Cape Horn to a limited extent on the Atlantic side of Patagonia ...
Least Concern
- Unlike many oystercatchers that sport black and white plumage, the Blackish Oystercatcher is entirely black, making it a striking monochromatic figure against the often-gray coastal rocks. - Its robust, chisel-like bill is a marvel of adaptation, perfectly evolved for prying limpets off rocks a...