Southern Lapwing

The Southern Lapwing is a large, conspicuous plover widespread across open habitats of South America, easily recognized by its black-and-white face and breast pattern, iridescent greenish wing sheen, and thin wispy crest. Highly adaptable, it thrives in grasslands, pastures, wetland margins, and even urban parks, and is well known for its loud alarm calls and aggressive nest defense.

Wing covert feathers show an iridescent bronze-green to purplish sheen over a gray-brown base, visible as a glossy patch on the folded wing and a striking feature to identify on shed feathers. Head and neck feathers form a bold black-and-white pattern, with a black crown, throat, and breast patch bordered by white, and a thin, wispy crest of elongated feathers projecting from the back of the head. Flight feathers are blackish, with white patches at the base of the primaries visible in flight. The tail shows a black terminal band on an otherwise white base. Overall plumage contrast is much bolder and more graphic than most other shorebirds in its range, making feather identification relatively straightforward.

Sexes look similar, with only subtle differences in crest length or breast pattern extent that are not consistently reliable indicators of sex. Juveniles show duller, browner plumage overall with a shorter crest and less defined black breast patch, gradually acquiring full adult pattern within the first year. There is no strong seasonal plumage difference, as the species breeds and molts on a schedule not tied to northern hemisphere seasons. Molt is gradual and can occur nearly year-round depending on breeding schedule and latitude within its range.

Widespread across open lowland habitats of South America, including natural grasslands, pastures, agricultural fields, wetland margins, riverbanks, and increasingly urban parks and airports. It ranges from southern South America north through much of the continent, and in some areas is largely resident, while populations at higher latitudes may show local seasonal movements linked to breeding.

Southern Lapwings forage by walking and running across open ground, picking insects, earthworms, and other invertebrates from the surface or shallow soil. Nests are simple ground scrapes in open areas, often surprisingly exposed, and the species is renowned for extremely aggressive nest defense, mobbing potential predators including much larger animals and even humans with loud calls and diving attacks. Its voice is a loud, piercing, repeated alarm call that carries over long distances, often the first indication of its presence. Conservation status is IUCN Least Concern, and the species has expanded its range in many areas due to its adaptability to human-modified landscapes.