pernilongo vs pernilongo-de-costas-negras/de-costas-brancas

The Black-winged Stilt and Black-necked Stilt are closely related waders with similar body structures but can be distinguished by their plumage. The Black-winged Stilt typically has a white head and neck, while the Black-necked Stilt features a distinctive black cap extending down the back of the neck.

Look for the white head and neck of the Black-winged Stilt versus the black cap and neck of the Black-necked Stilt. These plumage differences are the most reliable field marks when distinguishing between the two species.

Black-winged Stilts have a predominantly white head and neck, contrasting with their black wings. In contrast, Black-necked Stilts have a black cap that extends down the back of the neck, creating a more pronounced black-and-white contrast.