Medium-sized wader bird (about 31 cm or 12 in) with very long red legs and a long bill, with orange base of the lower jaw. The plumage of the male is homogeneous black, with a light mottling on the wings and back. The legs are dark red. The female has a less dark tone, with white edges on the feathers. The winter plumage is light grey on the back and white on the underparts and on the breast. It has a white eyebrow on the head and an also black lore.
Species linked to flooded lands on forest edges of tundra areas of northern Europe and Asia. During the wintering period, it occupies coastal salt ponds, estuaries and inland wetlands (lagoons and floodplains).
Bird that can be watched during its migratory passage in the province. Nest on the ground, near tree trunks. One late annual laying as of May of 4 eggs. The incubation and all the burden of the reproduction falls on males since females begin their migration very early. This wader consumes invertebrates. Due to its size it can forage in deeper waters than the rest of the redshanks and sandpipers.
Scarce and infrequent species in the province of Malaga, where only some solitary individuals are detected during their migratory passages. The observations are concentrated in the mouth and low fertile plain of the Guadalhorce river.
Although its surname in Spanish ("negro") describes its appearance during the breeding season, when its plumage is almost completely black, the truth is that in rare occasions are individuals with this plumage observed in Malaga. Most observations are of young individuals or in winter plumage, predominantly light grey.