The March issue of Birding features the work of Kevin Omland, an associate professor of biology.
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The author, Paul Hess writes that, Omland and his colleagues, “take an opposite view from several papers that recommend splitting the Common Raven into two species.”
The new study demonstrates a need for multiple criteria — not only genetic, but also morphological, behavioral and ecological to judge whether a population deserves full-species status.
Tags: Biology