Magnificent Bird-of-paradise

Least Concern

Cicinnurus magnificus

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About

The Magnificent Bird-of-paradise is a small to medium-sized passerine bird renowned for the elaborate courtship display and striking plumage of the male. It is endemic to the rainforests of New Guinea and its satellite islands, where it primarily feeds on fruits and arthropods. Males are particularly notable for their iridescent green crown, yellow mantle, and two long, sickle-shaped tail feathers.

Size & lifespan

Length: 19-26 cm (excluding tail wires, which can add up to 10 cm)
Wingspan: Approximately 30-35 cm
Weight: 50-85 g
Lifespan: Estimated 5-10 years in the wild
Diet: Omnivore (primarily frugivorous and insectivorous)

Physical characteristics

Plumage: Adult males are spectacularly colored with an iridescent green crown, a bright yellow mantle, and a dark brown to black back. The breast is iridescent green, transitioning to a dark brown belly with a broad, iridescent green band. The wings are dark brown. The most distinctive features are the two long, bare, sickle-shaped central tail feathers, which are black with a green-blue sheen. Adult females are much more cryptic, with an olive-brown head and upperparts, finely barred buff and brown underparts, and a shorter, straight tail. Juveniles resemble females.
Beak shape: Slender, slightly decurved, and pointed. Black in males, dark horn to blackish in females.
Eye color: Dark brown
Leg color: Bright blue in males, duller blue-grey in females and juveniles.
Distinguishing features: Males: Iridescent green crown, yellow mantle, iridescent green breast band, and two long, sickle-shaped tail wires. Blue legs. Females: Olive-brown upperparts, barred underparts, and blue-grey legs.
Juvenile appearance: Juveniles of both sexes resemble adult females, with olive-brown upperparts and barred underparts. Young males gradually acquire adult male plumage over several years.
Seasonal changes: No significant seasonal plumage changes; plumage is consistent year-round once adult coloration is achieved.
Sexual dimorphism: Highly sexually dimorphic. Males are brightly colored with elaborate ornamentation, while females are cryptically colored in shades of brown and buff.

How to identify

1
Male Plumage
Look for the striking combination of iridescent green on the crown and breast, bright yellow mantle, and dark brown body. The two long, black, sickle-shaped tail wires are unmistakable.
2
Female Plumage
Identify by the overall olive-brown upperparts and finely barred buff and brown underparts. The blue-grey legs are a good clue, distinguishing it from other cryptic forest birds.
3
Leg Color
Both sexes have distinctively colored legs: bright blue in males, duller blue-grey in females. This is a useful field mark, especially for females.
4
Display Behavior (Males)
Listen for the male's harsh calls and watch for its elaborate display on a cleared 'court' on the forest floor, involving fanning its plumage and performing specific movements to attract females.
5
Habitat
Confined to the rainforests of New Guinea, typically in hilly or montane areas. If you are in this specific habitat, it increases the likelihood of encountering this species.

Habitat & range

Biomes: Tropical and subtropical moist broadleaf forests
Geographic range: New Guinea (mainland and some satellite islands including Salawati and Misool)
Elevation range: Typically found at elevations of 500-1500 meters, occasionally lower or higher.
Preferred environments: Primary and secondary rainforests, particularly in hilly and montane areas. Prefers dense understory and mid-story vegetation.

Behavior

Activity time: Diurnal, most active during the early morning and late afternoon.
Feeding habits: Forages primarily in the mid-story and canopy for fruits (especially figs and drupes) and arthropods (insects, spiders). It gleans insects from foliage and bark and plucks fruits directly from branches.
Social behavior: Generally solitary, except during the breeding season when males establish leks for display. Females are solitary or seen with dependent young.
Flight pattern: Short, undulating flights between trees within the forest. Not known for long-distance flight.
Migration pattern: Sedentary; no migratory patterns are known. It is a resident species throughout its range.
Territoriality: Males are highly territorial during the breeding season, defending display courts (leks) from rival males. Females maintain individual foraging territories.

Song & calls

Song: The male's display call is a series of harsh, raspy 'skraaaah' or 'kwaaah' notes, often interspersed with softer 'whistle-like' or 'churring' sounds. It can also produce a distinctive 'whip-crack' sound with its wings during display.
Call: Common calls include a sharp 'chip' or 'chup' note, and a harsh 'rattle' or 'churr' when alarmed. Females and juveniles have less elaborate vocalizations.
When they vocalize: Males vocalize most frequently during courtship displays, primarily in the early morning and late afternoon. Calls can be heard throughout the day, especially when foraging or alarmed.

Breeding & reproduction

Breeding season: Varies geographically, but generally occurs between August and May, peaking during the dry season.
Nesting habits: Polygynous breeding system, with males displaying at leks. Females build a cup-shaped nest, typically in a tree fork or dense tangle of vines, using plant fibers, leaves, and moss, often decorated with fungal mycelia or spider silk.
Clutch size: 1-2 eggs (usually 1)
Egg description: Typically one egg, rarely two. Eggs are pale cream to pinkish-buff with fine streaks and blotches of reddish-brown and grey, concentrated at the larger end.
Incubation period: Approximately 18-20 days (female only)
Fledging period: Approximately 18-20 days after hatching
Parental care: Only the female builds the nest, incubates the eggs, and cares for the young. Males play no role in parental care, focusing solely on display and mating.

Where to find

Rainforests of New Guinea

The primary habitat for this species. Look in primary and mature secondary forests, particularly in hilly terrain.

Lek Sites

During the breeding season, males clear small 'courts' on the forest floor for their displays. Locating these sites (often by listening for calls) is the best way to observe males.

Mid-story and Canopy

While males display on the ground, both sexes forage in the mid-story and canopy for fruits and insects. Look for movement in the foliage.

Field tips

Listen for Calls. The male's distinctive harsh 'skraaaah' calls are often the first indication of its presence, especially during the breeding season. Learn to recognize these vocalizations.
Patience at Lek Sites. If you locate a lek, remain still and patient. Males will often return to their display courts repeatedly. Use binoculars for detailed observation.
Focus on Movement. In dense forest, spotting birds can be challenging. Look for subtle movements in the foliage, especially around fruiting trees.
Early Morning/Late Afternoon. These are the most active times for many forest birds, including the Magnificent Bird-of-paradise, particularly for male displays.

Similar species

King Bird-of-paradise

Cicinnurus regius

The King Bird-of-paradise is smaller, predominantly red, and has two long, bare tail wires ending in green spiral discs, unlike the sickle-shaped wires of the Magnificent Bird-of-paradise. Its display is also different, often involving hanging upside down.

Wilson's Bird-of-paradise

Cicinnurus respublica

Wilson's Bird-of-paradise is smaller, has a bare blue crown with a black cross pattern, and a red back. Its tail wires are also different, being shorter and curled. It is restricted to specific islands (Waigeo and Batanta).

Quick facts

Habitat:: New Guinea rainforests
Diet:: Fruits and arthropods
Male Display:: Elaborate ground display at leks
Tail Wires:: Two long, sickle-shaped wires on males
Leg Color:: Bright blue (male), dull blue-grey (female)

Fun facts

The male Magnificent Bird-of-paradise clears a small 'display court' on the forest floor, meticulously removing leaves and debris to create a clean stage for his courtship dance.
During his display, the male will often fan his iridescent green breast shield and erect his yellow mantle feathers, creating a stunning visual spectacle for potential mates.
The species name 'magnificus' directly translates to 'magnificent' or 'splendid', a fitting description for the male's spectacular appearance.
Like many birds-of-paradise, the Magnificent Bird-of-paradise is a key seed disperser in its rainforest ecosystem, contributing to forest regeneration by consuming fruits and spreading seeds.

Scientific classification

Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Paradisaeidae
Genus: Cicinnurus
Species: Cicinnurus magnificus

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