The Collared Bush Robin, also known as Johnstone's robin (Tarsiger johnstoniae), is a small bird endemic to Taiwan, typically found in montane and subalpine forests at elevations of 2,000 to 2,800 meters. It is recognized for its distinctive male plumage, which features a slate-black head and a rufous collar, while the female is more subdued in color.
Overview
The Collared Bush Robin, also known as Johnstone's Robin, is a bird species scientifically named Tarsiger johnstoniae. It belongs to the Muscicapidae family and is endemic to Taiwan.
Physical Description
| Attribute | Male Characteristics | Female Characteristics |
|---|---|---|
| Size | Approximately 12 cm (4.7 in) long | Approximately 12 cm (4.7 in) long |
| Head Color | Slate-black with a white supercilium | Dull olive-brown with a less distinct supercilium |
| Breast Color | Rufous upper breast forming a collar | Pale yellow or yellowish-olive |
| Back Color | Sooty-black | Dark brown |
| Belly Color | Buffish-yellow to grey-white | Variable, often warm brown |
Habitat and Distribution
- Location: Endemic to Taiwan, primarily found in montane and subalpine forests.
- Elevation: Typically inhabits areas between 2,000 to 2,800 meters (6,600 to 9,200 feet) and can be found above the tree line.
- Seasonal Behavior: Descends to lower elevations during winter.
Behavior and Breeding
- Diet: Feeds on insects and invertebrates, often foraging on the ground or from perches.
- Breeding Season: Occurs from March to August, with two broods per year.
- Nesting: The female builds a cup nest using moss, roots, and grass, usually within 5 meters of the ground.
The Collared Bush Robin is assessed as a least-concern species by the International Union for Conservation of Nature (IUCN), indicating a stable population.
