The black-necked stilt (Himantopus mexicanus) is a large, long-legged wader in the family Recurvirostridae. It is found in freshwater and saltwater wetlands throughout the Americas, from Canada to Argentina. The black-necked stilt is a striking bird, with its long, slender legs, black neck and back, and white underparts. It is also a very vocal bird, with a variety of calls that it uses to communicate with other stilts.
The black-necked stilt is an important part of the wetland ecosystem. It helps to control populations of insects and other small animals, and it is also a food source for larger predators. The black-necked stilt is also a popular bird with birdwatchers, due to its striking appearance and interesting behavior.