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{{B}}Conservation or Wasted Effort {{/B}}
The black robin (旅鸫) is one of the world’s rarest birds. It is a small,
wild bird, and it lives only on the island of Little Mangere, off the coast of
New Zealand. In 1967 there were about fifty black robins there; in 1977 there
were fewer than ten.{{U}} (46) {{/U}}
Energetic steps
are being taken to preserve the black robin.{{U}} (47) {{/U}}The idea is
to buy another island nearby as a special home, a “reserve”, for threatened wild
life, including black robins. The organizers say that Little Mangere should then
be restocked (重新准备) with the robin’s food. Thousands of the required plants are
at present being cultivated in New Zealand.
Is all this concern
a waste of human effort {{U}} (48) {{/U}}Are we losing our sense of what
is reasonable and what is unreasonable