Black-billed hanging parrot

The black-billed hanging parrot, scientifically known as Loriculus bonapartei, is a small parrot species found exclusively in the Sulu Archipelago of the Philippines. This species was formerly considered to be the same as the Philippine hanging parrot but was distinguished due to morphological differences, particularly its black bill and duller legs compared to its relative's dark red bill.

Description and Taxonomy

Measuring approximately 14 centimeters in length, the black-billed hanging parrot is characterized by its predominantly bright green plumage. Its head displays a striking pattern, with the front of the crown being red, transitioning to orange and then yellow towards the back. The tail is green on its upper side and blue underneath. The bill is a notable black color, and its irises are brown. This species is monotypic, meaning it has no recognized subspecies.

Behavior and Ecology

Information regarding the specific behavior and ecology of the black-billed hanging parrot is limited, but it is presumed to be similar to that of the closely related Philippine hanging parrot. They are typically observed alone or in pairs, with sightings in small groups being rare. Their foraging activities usually occur in the canopy or mid-levels of forests. Their diet is thought to consist of nectar, flowers, and soft fruits, such as those from fig trees.

Habitat and Conservation

The black-billed hanging parrot inhabits tropical moist lowland forests, forest edges, bushy areas, coconut plantations, and bamboo clusters. The conservation status of this bird has not yet been assessed by the IUCN. However, significant deforestation has occurred in its native range, with areas like Jolo and Sanga-Sanga being almost completely cleared. The remaining forests are increasingly being converted into palm oil and rubber plantations. Like the Philippine hanging parrot, it is also a target for the illegal wildlife trade, with escaped individuals having been recorded outside their natural range.

Reproduction

While specific details for the black-billed hanging parrot are scarce, its breeding habits are inferred from the Philippine hanging parrot. The latter is a seasonal breeder, with nesting occurring between March and May. Parrots are generally cavity nesters, and a nest found in the wild was located high in a dead tree. A unique behavior observed in some hanging parrots is the use of nesting material, where the female tucks it between her feathers to transport it to the nest. In captivity, clutches typically consist of 3 eggs, which are incubated for about 20 days. The chicks take approximately 35 days after hatching to reach the fledging stage.