Black-necked Stilt

Overview

The black-necked stilt (Himantopus mexicanus) is one of the most visually distinctive wading birds in the Americas — sharply two-toned black-and-white with absurdly long pink legs that are, proportionally, the second longest of any bird relative to body size (after the flamingo). Adults are clean white below, glossy black above on the back and crown, with a bold white patch above each eye. Both sexes look similar, though females tend toward brownish-black on the back rather than the male’s glossy black. In flight, the long legs trail well past the tail.

These birds are vocal and conspicuous — groups will mob approaching threats (including humans) with loud yip yip yip calls, a behaviour that makes them easy to detect even when the water is otherwise quiet.

Why Tortuguero

Tortuguero’s canal-and-lagoon system creates extensive shallow-water habitat that suits the stilt’s foraging strategy: it wades into water up to its belly-depth and picks invertebrates — aquatic insects, small crustaceans, seeds — from the surface and shallows. The species is at the southern end of its reliable range in Costa Rica; Tortuguero’s Caribbean lagoons represent one of the country’s better sites for it on the Atlantic side.

The park’s open lagoon margins and the wider Tortuguero river estuary provide the combination of shallow water and open sight lines this species needs. It does not require primary forest and is typically found away from the closed-canopy canal corridors that define most of the park.

How to see them (honestly)

• Check the open lagoon edges accessible by boat — the northern section of Laguna Tortuguero and open water near the river mouth give the best views.
• The grassy margins near the airstrip are occasionally productive during wet-season flooding.
• Listen first: the species’ sharp call is hard to miss in open wet areas.
• Wet season (May–Nov) is more reliable; water levels create more usable shallow-flat habitat.
• Not a guaranteed species here — several visits to Tortuguero may pass without a sighting if conditions are not right.

Status note

Globally Least Concern with a large, widespread population. The Hawaiian subspecies (H. m. knudseni, the Hawaiian stilt) is separately listed and far more endangered with fewer than 2,000 individuals. The mainland subspecies that occurs in Costa Rica is under no immediate threat, though historical habitat loss from wetland drainage affected numbers in the 20th century across North America. Tortuguero’s protected lagoon system provides undisturbed habitat for both resident and migrant individuals.