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Keywords from Image Description:
MonographTrochiGoul . Petasophora coruscans Colibri coruscans micheldesfayes org html Gould John monograph of the Trochilidae or family of hummingbirds org Volume micheldesfayes org html Creator John Gould Creator Henry Constantine Richter PDold Henry Richter Monograph of the Trochilidae Volume Colibri coruscans