Zapornia atra
The Henderson Crake (Zapornia atra) is a small, flightless rail, a captivating jewel of Henderson Island in the South Pacific. Measuring approximately 13 cm (5.1 inches) in length and weighing a mere 40-50 grams, this compact crake is entirely cloaked in a glossy sooty-black plumage, giving it a remarkably uniform appearance. Its most striking field marks include piercing ruby-red eyes, a vibrant yellow bill tipped with a reddish hue at the base, and stout, prominent scarlet-red legs and feet...
This crake exclusively inhabits the dense, low-lying forest and coastal thickets of Henderson Island, a raised coral atoll. It thrives amidst the Pisonia grandis and other native vegetation from sea level up to the island's highest points.
Its diet is largely omnivorous, consisting primarily of small invertebrates such as insects, spiders, and land crabs, supplemented with various plant materials including seeds, shoots, and fruits found in the leaf litter.
Henderson Crakes are primarily diurnal, spending their days foraging actively on the forest floor, though their secretive nature means they are often heard rather than seen, typically skulking deep within vegetation. They employ a ground-gleaning and probing foraging strategy, meticulously search...
The Henderson Crake's geographic distribution is exquisitely restricted, found solely on Henderson Island, part of the remote Pitcairn Group in the South Pacific Ocean. This isolated island, approximately 33 square kilometers (13 square miles) in size, represents the entirety of its breeding and ...
Vulnerable
- The Henderson Crake is completely flightless, a classic example of island gigantism/loss of flight in isolated insular populations. - It is endemic to a single, uninhabited island: Henderson Island, a UNESCO World Heritage site in the Pitcairn Group. - The species faced near extinction due to i...