Tenggara Hill Myna

The Tenggara Hill Myna is immediately recognizable by its glossy black plumage, which exhibits a stunning iridescent bluish-purple hue. This lustrous coloration makes it a standout in the forest canopy. Adult birds feature bright orange-yellow wattles on their faces, a characteristic shared by both males and females, though these wattles may appear slightly more prominent in males. The stout, bright yellow beak and legs provide additional splashes of color that make identification straightforward. Juvenile mynas, however, present a more muted appearance, with duller wattles and less pronounced iridescence in their plumage. In terms of size, the Tenggara Hill Myna is medium-sized, typically measuring around 29 centimeters in length. When in flight, the myna's broad, rounded wings and short tail are distinctive, providing a robust silhouette against the sky. Perched, it maintains an upright posture, often engaging in curious head tilts while scanning its surroundings. While the Javan Myna and Common Hill Myna may be confused with the Tenggara Hill Myna due to similar coloration, the latter's more localized range and distinctive wattles help differentiate it from these relatives. Observers should also note the vocalizations, as the Tenggara Hill Myna's ability to mimic a wide variety of sounds is unparalleled among its congeners.

The Tenggara Hill Myna primarily feeds on a diet consisting of a wide variety of fruits and berries, making it an important frugivore within its ecosystem. Figs, papayas, and other soft fruits form the staple of its diet, and the bird is adept at foraging both in the canopy and at mid-levels of the forest. During certain times of the year, particularly when fruit is scarce, the myna supplements its diet with insects and small invertebrates, which provide essential protein. Its foraging technique involves agile movements among branches, often hanging upside down to reach fruit. The bird’s daily feeding schedule peaks during the early morning and late afternoon, taking advantage of cooler temperatures and reduced competition from other frugivores. This flexible diet allows the Tenggara Hill Myna to adapt to seasonal variations in food availability, contributing to its resilience in changing environments.

The Tenggara Hill Myna exhibits a variety of intriguing behaviors that reflect its adaptability and intelligence. This highly social bird often forms small flocks, particularly outside the breeding season, which aids in locating food and provides protection against predators. Within these flocks, a clear social hierarchy may emerge, with dominant individuals having priority access to food resources. The myna's territorial behavior becomes most evident during the breeding season, as pairs defend nesting sites against intruders. Courtship displays are elaborate, involving a combination of vocalizations and physical posturing such as wing flapping and bowing. The Tenggara Hill Myna is also known for its impressive vocal mimicry, capable of imitating a wide range of sounds, including other bird calls and even human-made noises, which it integrates into its extensive repertoire. Its alertness and group dynamics enhance its ability to respond quickly to potential threats, with alarm calls serving as a warning to the entire flock. The daily activity pattern of this bird involves foraging primarily in the morning and late afternoon, with periods of rest or preening during the midday heat.

The nesting habits of the Tenggara Hill Myna reflect its preference for secure and secluded locations. Nest sites are typically located in the cavities of large, mature trees, providing protection from predators and harsh weather conditions. The birds use a variety of materials to construct their nests, including twigs, leaves, and feathers, creating a sturdy and comfortable environment for their young. A typical clutch consists of two to three eggs, which are pale blue with brown speckles. Both parents actively participate in incubation, which lasts about 14 to 17 days. After hatching, the chicks are cared for by both parents and fledge approximately three to four weeks later. The Tenggara Hill Myna generally raises one to two broods per year, depending on environmental conditions and food availability. Parental roles are well-defined, with both male and female sharing responsibilities in feeding and protecting the young, ensuring high survival rates for their offspring.

The Tenggara Hill Myna is celebrated for its complex and melodious vocalizations. Its primary song features a series of rich, flute-like notes delivered with varied rhythm and pitch, creating an enchanting auditory experience in its forest habitat. Call notes are equally diverse, ranging from sharp whistles to softer, gurgling sounds. Alarm calls are distinct, characterized by harsh, repetitive notes that serve to alert other mynas of potential danger. During the dawn chorus, the Tenggara Hill Myna's vocal prowess is most evident as it joins other birds in a symphony of sounds, marking its territory and strengthening pair bonds. Its ability to mimic human speech and a wide array of environmental sounds adds a unique dimension to its vocal profile, often surprising and delighting listeners.

• 1The Tenggara Hill Myna can mimic over 30 different bird species, showcasing its impressive vocal abilities.
• 2Unlike many mynas, the Tenggara Hill Myna has a more restricted range, found only on the Lesser Sunda Islands.
• 3The iridescence in the Tenggara Hill Myna's plumage helps it blend into the canopy, providing camouflage from predators.
• 4A pair of Tenggara Hill Mynas may spend up to a week selecting a suitable nest cavity, ensuring optimal safety for their young.
• 5This myna's diet varies seasonally, with insects comprising up to 20% of its intake during fruit scarcity.
• 6Tenggara Hill Mynas participate in communal roosting, gathering in groups at dusk to share safe resting sites.
• 7Conservation programs have successfully involved local communities in monitoring Tenggara Hill Myna populations, increasing awareness and protection efforts.

The IUCN currently lists the Tenggara Hill Myna as Near Threatened, with its population facing pressure from habitat loss and illegal trapping for the pet trade. While the population trend shows signs of decline, concerted conservation efforts are underway to mitigate these threats. Habitat protection measures, including the establishment of protected areas within its range, aim to preserve the natural environments crucial for the myna's survival. Additionally, awareness campaigns targeting local communities seek to reduce the capture of wild birds for sale. Historically, the myna's population has fluctuated with changes in habitat availability, underscoring the importance of ongoing conservation initiatives to ensure its long-term survival.