Complex sentence: The black-mandibled and chestnut-mandibled do not overlap in the wild and are found to differ 1.35% in mitochondrial DNA, however the SACC and NACC of the AOU have indicated (in 2010) that these birds should be classified as conspecific.
Split into simpler sentences: The black-mandibled and chestnut-mandibled do not overlap in the wild and are found to differ 1.35% in mitochondrial DNA. The SACC and NACC of the AOU have recently indicated (in 2010) that these birds should be classified as conspecific.