It has black plumage, a featherless, grayish-black head and neck, and a short, hooked beak. The chicks of passerines are altricial&colon; blind, featherless, and helpless when hatched from their eggs. All species have featherless heads and necks. They typically eat insects and seeds, are ground-nesting, and resemble partridges, except with featherless heads. Newborn chicks are blind, red and featherless, though quickly darken as feathers grow. Young are altricial, which means they are blind, featherless and helpless at birth. Newly hatched chicks are featherless and are dark blue or black in colour. Adults have a featherless red-orange face with pale brown irises and a yellow cere. They have strong legs and featherless wattles behind the bill. These birds have relatively short, rounded wings and long, featherless legs. Caruncles may be featherless, or, have small scattered feathers. The head and neck are featherless and the skin is dark gray and wrinkled. They have relatively short, rounded wings and long, featherless legs. The chicks are born featherless, but are soon covered in white down. The bill, legs, feet, and featherless eye ring of this species are all vibrant red.