Crested Coua

Fascinating facts about the Crested Coua

• In the dry forests of Madagascar, a bird's call echoes at 2 kHz, a low hum that can travel over 1 km, made by the Crested Coua, which uses this call to find a mate. This low-frequency call is beyond human hearing range, but its drumming on trees can be heard by humans. The Crested Coua's call is a key part of its mating ritual, and its ability to produce such a low frequency is due to its syrinx, the vocal organ located at the base of the trachea, which is made up of two pairs of cartilaginous rings.
• Every morning, the Crested Coua starts its day by Sun-basking, spreading its wings and tail to soak up the sun's rays, and then it spends most of its day foraging for food on or near the ground. This foraging behavior is crucial for the Crested Coua's survival, as it feeds on a variety of invertebrates, including insects and worms, as well as small fruits and seeds. The Crested Coua's diet is rich in protein, which is necessary for its growth and maintenance.
• The Crested Coua has zygodactylous feet, with two toes pointing forward and two backward, an adaptation that allows it to climb up trees and grasp branches, making it an agile forager in the forest understory. Its strong legs and sharp claws also enable it to dig into tree bark and leaf litter in search of insects and other small invertebrates. This unique foot structure is a key component of the Crested Coua's foraging behavior and allows it to exploit a wide range of food sources.
• Coua cristata is a large bird, measuring 42 cm in length and weighing up to 240 grams, with a distinctive crest on top of its head, which gives it its name. The crest is made up of long, thin feathers that can be raised and lowered at will, and is used for communication and courtship displays. The Crested Coua's plumage is mostly brown and grey, with a white throat patch and a long, graduated tail, which it uses to balance while running or climbing.
• In the wild, the Crested Coua can live up to 10 years, during which time it will form long-term monogamous relationships, with pairs staying together for several breeding seasons. The female lays 2-4 eggs per clutch, which are incubated for about 18 days, and both parents take turns caring for the young, which fledge after about 20 days. The Crested Coua's long lifespan and monogamous behavior are likely adaptations to its stable, but food-scarce environment, and allow it to maximize its reproductive success.

At a glance

About the Crested Coua

The Crested Coua, a striking bird endemic to the lush forests of Madagascar, captivates with its vibrant plumage and unique silhouette. Sporting a rich blue body adorned with a prominent crest, this avian gem is a marvel of evolution, perfectly adapted to its arboreal habitat. The Coua's long tail, which can exceed its body length, aids in balance as it navigates the dense foliage in search of food. These birds are primarily frugivorous, favoring ripe fruits and berries, but they also supplement their diet with insects and small vertebrates. Their call, a series of melodic coos, resonates through the forest, echoing the rhythms of life in this biodiverse hotspot. Interestingly, the Crested Coua exhibits a fascinating behavior known as 'anting,' where it uses ants to preen its feathers, allowing the formic acid to help maintain their plumage and rid it of parasites, an instinctual practice that highlights the intricate relationships these birds have with their environment. Socially, Crested Couas are often seen in pairs or small family groups, engaging in cooperative behaviors that enhance their foraging efficiency. Their striking appearance and engaging behaviors make them a favorite among birdwatchers and researchers alike. However, their dependence on specific forest habitats makes them vulnerable to habitat loss due to deforestation and human encroachment. As these birds navigate their world, they embody the delicate balance between survival and the threats posed by a rapidly changing environment, leaving one to wonder about the future of this remarkable species as they adapt to the pressures surrounding them.

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