A molecular phylogeny of the harriers (Circus, Accipitridae) indicate the role of long distance dispersal and migration in diversification.

@article{Oatley2015AMP,
  title={A molecular phylogeny of the harriers (Circus, Accipitridae) indicate the role of long distance dispersal and migration in diversification.},
  author={Graeme Oatley and Robert E. Simmons and J{\'e}r{\^o}me Fuchs},
  journal={Molecular phylogenetics and evolution},
  year={2015},
  volume={85},
  pages={
          150-60
        }
}
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TLDR
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