Black Baza is a species that expanded it's breeding range from far southwest China (and Vietnam, Laos, Thailand) to Hong Kong and other parts of south-east China through the 1970s and 1980s.
But from a high point during the 1990s, numbers have fallen back again.
Unlike some more recent additions to the Hong Kong "list", it's hardly the sort of bird that would be overlooked or misidentified
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