Yellow Bittern

Collared Bush-Robin

 Tarsiger johnstoniae

Endemic

            The Collared Bush-Robin, Tarsiger johnstoniae (formerly Erithacus johnstoniae) is a small bird approximately 13 cm long.  The male has a black head, neck, and back; a bright, reddish-orange hind collar and bar across the scapulars, and long, narrow white supercilium. The female lacks the male’s bright colors; she is olive-gray above and yellowish-buff below, with a less prominent supercilium.  Juvenile birds are streaky brown with buff supercilium.

            Collared Bush-Robins inhabit coniferous and broadleaf forest undergrowth in high mountains. They are most often seen alone or in pairs, on mountain tracks and roads, although they will utilize low perches when available. They are fairly common on Mount Ali (A Li Shan), in Chiayi County, which is why they are sometimes called "Mount Ali robins." They are also found in similar forest habitat, at 2000 to 2800 m elevation, on other mountains.  Their food consists of caterpillars and insects.

            Male Collared Bush-Robins are highly territorial. Their typical call sounds like "pi, pi, pi…" and ends in two or three deep throaty sounds; however, when on guard, their warning calls sound like "ga! ga! ga!"     

            Collared Bush-Robin breeding season begins in May and lasts until July. The female builds the nest, mostly of moss, roots, grass, ferns, and hay, in rock and tree cavities within 5 m of the ground.  After laying a clutch of two to three eggs, she incubates them while the male guards the nest.  After the chicks hatch, both parents care for them.

Reference:  The Complete Guide to Birds in Taiwan, by Jin-yuan Wang