A new study of the endemic New Zealand Spotted Shag has found there is no genetic difference between Spotted Shags and putative 'Blue Shags', but that the 'northern' Hauraki Gulf Spotted Shag population is a unique genetic lineage in danger of extirpation.
Link to abstract: https://academic.oup.com/condor/advance ... Yal0byByfo
Discussion about the evolution, relationships, and naming of New Zealand birds
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- Michael Szabo
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