Scarlet-headed Blackbird

Overview

The Scarlet-headed Blackbird is a boldly colored marsh bird of central South America, easily recognized by its brilliant scarlet-red head, neck, and breast contrasting sharply with an entirely black body. It favors dense marsh vegetation, where its vivid coloring can still stand out against the greenery.

Feather Identification

• Head, neck, and breast feathers: Vivid scarlet-red, sharply demarcated from the rest of the body
• Body feathers: Solid black on the back, wings, belly, and tail
• Bill: Long, pointed, and blackish, suited for probing among marsh vegetation
• Similar species: The combination of scarlet head/breast and black body is distinctive among South American marsh blackbirds, differing from the yellow-headed pattern of the Yellow-hooded Blackbird

Plumage Details

Adults show a vivid scarlet-red head, neck, and upper breast contrasting sharply with an otherwise entirely black body, including the back, wings, belly, and tail. Sexes are similar in pattern, though females may show slightly less extensive or duller red coloring. Juveniles are much duller, showing mottled brownish plumage before acquiring the bold adult pattern.

Habitat & Range

Scarlet-headed Blackbirds inhabit freshwater marshes, wet grasslands, and reedbeds across central South America, including parts of Brazil, Bolivia, Paraguay, Uruguay, and Argentina. The species is largely resident, with some local movements tied to water levels and marsh conditions.

Behavior & Field Notes

Scarlet-headed Blackbirds forage among marsh vegetation for insects and other invertebrates, often clinging to reeds and grass stems. Their calls include harsh, grating notes typical of many marsh blackbirds. Nests are woven and attached to reeds or marsh vegetation, providing concealment and stability above water.