Kagu

Fascinating facts about the Kagu

• Measuring 55 cm (22 in) in length, the kagu weighs between 700 g and 1,100 g (25-39 oz), a hefty size for a bird that never truly flies. Its bright red legs let it sprint across the forest floor, while its wings, spanning about 77.5 cm (30.5 in), are kept for dramatic displays rather than sustained flight. Uniquely, it sports nasal corns that shield its nostrils while probing soil for prey, a feature no other bird has. This blend of size, strength, and exclusive anatomy lets the kagu dominate the leaf-litter niche, hunting where most birds cannot.
• Kagus lay a single, grey, slightly blotched egg that weighs 60-75 g, then share incubation duties in 24-hour shifts that swap around noon each day. The incubation period stretches 33-37 days, unusually long for an egg of that size. In captivity, individuals can live over 20 years, giving them many breeding seasons.
• Introduced mammals have turned the kagu's world upside down: rats are blamed for 55% of nestling deaths, while cats, pigs, and dogs also threaten the kagu. Habitat loss from mining and forestry further shrinks the bird's already tiny range, only 5% of New Caledonia's original forest remains. Classified as Endangered (CITES I).
• Genetic studies place the kagu's split from its closest living relative, the sunbittern, in the Oligocene, 45 to 17 million years ago, with colonization of New Caledonia occurring 60 to 25 million years ago. As the sole surviving member of the family Rhynochetidae, it represents a living branch of a Gondwanan bird lineage that also includes extinct adzebills.
• Each kagu family defends a year-round territory of 10-28 hectares (25-69 acres). The clan-based social system includes one breeding female and up to three breeding males, with grown sons staying to guard the borders.

Sources

Every fact above was checked against these pages, and kept only where one of them states it.

• Wikipedia

At a glance

About the Kagu

In the mist-shrouded forests of New Caledonia, the kagu glides with an ethereal elegance, its soft, grey-brown plumage blending seamlessly into the dappled underbrush as it searches for invertebrates and small reptiles to devour. With a slow, deliberate gait, this enigmatic bird navigates its domain, its long legs carrying it effortlessly across the forest floor, its sharp, pointed beak probing the leaf litter with a quiet, insistent curiosity. As it moves, the kagu's crest, a crown of slender, hair-like feathers, quivers and stirs, imbuing this rare and elusive creature with an air of haunting, otherworldly beauty.

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