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Peterson, A T. Taxonomy is important in conservation: a preliminary reassessment of Philippine species-level bird taxonomy. Bird Conservation International. 2006, 16 (2): 155–173. S2CID 54650453. doi:10.1017/S0959270906000256. hdl:1808/6535.
Peterson, A T. Taxonomy is important in conservation: a preliminary reassessment of Philippine species-level bird taxonomy. Bird Conservation International. 2006, 16 (2): 155–173. S2CID 54650453. doi:10.1017/S0959270906000256. hdl:1808/6535.