Black Robinとは 意味・読み方・使い方

The Black Robin or Chatham Island Robin (Petroica traversi) is an endangered bird from the Chatham Islands off the east coast of New Zealand. It is closely related to the New Zealand Robin (P. australis). It was first described by Walter Buller in 1872. The binomial commemorates the New Zealand botanist Henry H. Travers (1844–1928). The Black Robin is a sparrow-sized bird measuring 14–15 cm (5.5–6 in). Its plumage is almost entirely brownish-black, with a black bill and brownish-black yellow-soled feet. Unlike its mainland counterparts, its flight capacity is somewhat reduced. Evolution in the absence of mammalian predators made it vulnerable to introduced species such as cats and rats, and it became extinct on the main island of the Chatham group before 1871, being restricted to Little Mangere Island thereafter.