For a long time, people who lived on an island off the west
coast of Africa reported hearing unusual sounds coming from the
island's forests at night. However, nobody knew what was making
them. The mystery was finally solved when scientists took a photo
24 ). It was a kind of owl. The following year, scientists
caught one of these birds and discovered that it was a new species.
Scientists had guessed that there must be owls on the island, but
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