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Sadly, neither he nor his colleagues could save the New Zealand bush wren.

The bush wren was found on both of New Zealand's main islands, although in historical times it seems to always have been rare on the North.

Once these animals began to occur on New Zealand soil--through the agency of humans--the bush wren's days were numbered.

Only a bush wren could have hidden its nest more completely—Bruce had been lucky in spying it out.