Overview of Cendrawasih
The Lesser Bird of Paradise (Paradisaea minor) is an endemic species that inhabits the lowland rainforests of Irian Jaya and Papua New Guinea. However, its wild population has been gradually declining over time due to intensive hunting, habitat destruction, and land conversion, which have led to a decrease in both the quantity and quality of its natural habitat particularly in terms of food availability, shelter, and vegetation cover. Generally, this bird is found in the forest canopy and rarely descends to the ground.
Paradisaea minor is a medium-sized bird, measuring about 32 cm in length and weighing between 183–300 grams. Its main attraction lies in its vibrant plumage. The male has a reddish-brown chest, long ornamental plumes of yellow and white that drape over the back, and a shimmering emerald-green neck. The female, on the other hand, has shorter plumage with white underparts and a blackish-brown head. The species has a slender, slightly curved grayish-blue bill, adapted to its diet of fruits, insects, and small invertebrates. In addition, the Lesser Bird of Paradise has bright yellow irises, adding to its striking appearance.
Life Cycle of Cendrawasih
Breeding begins once the birds reach sexual maturity. Females typically lay one or two eggs per clutch and solely responsible for incubation, which last around 18–20 days. Male do not participate in parental care, a trait common among birds of paradise. The females gently feed her chicks with tiny insects, bits of fruit, and sweet nectar until they are ready to try their first short flights.
Juvenile birds gradually develop their plumage coloration over several months. Male birds reach their full ornamental plumage and coloration at around 4–7 years of age, while females mature earlier, at approximately 2–3 years. Adult birds of paradise can live up to 15–20 years in the wild, depending on environmental conditions. Birds of paradise are polygamous species, meaning that males may mate with more than one female. In contrast, species or individuals that are monogamous, forming pair bonds with only one partner, tend to have less striking plumage, similar to that of females. The life cycle of birds of paradise demonstrates a strong sexual dimorphism and a complex reproductive strategy, in which female parental care and male-to-male competition play crucial roles in the reproductive success of the species.
The Secret Dance of Cendrawasih
During the breeding season, male P. minor perform a distinctive courtship dance as part of their behavior to attract females. Amid the dense forest canopy, males gather in a specific area known as a lek. Each individual occupies a particular perch and defends its position while displaying body movements, spreading its ornamental feathers, and producing characteristic vocalizations. Repetitive movements such as wing-flapping, body arching, and chest feather-shaking form a coordinated sequence of ritualized dance. Visiting females observe and evaluate the performance of the displaying males before selecting a mate. In this system, only a few dominant males successfully mate, reflecting strong sexual selection within the behavior of the species.
Vocal Performance
The vocal behavior of male P. minor consists of a series of loud, harsh, and repetitive calls that serve both as a form of territorial display and as a signal to attract females during reproductive activities. Generally, these birds vocalize from morning until late afternoon. Vocal activity is often accompanied by playful movements and dance displays as part of their courtship performance.Each male P. minor typically calls from a specific perch within the display tree. Although this species does not possess a complex song repertoire like songbirds, the strength, rhythm, and persistence of a male’s vocalization play an important role in sexual selection, reflecting his vitality and dominance within the hierarchy of the lek.