Which insular subspecies found in the Greater Antilles is specifically named *Vireo griseus alleni*?
Answer
Bahama Vireo
The text specifies the distinct subspecies forms that have developed in the Greater Antilles region, which includes Cuba, Hispaniola, and the Bahamas. Among these island populations, *Vireo griseus alleni* is specifically identified as the Bahama Vireo. Another insular form mentioned is *Vireo griseus bonhotei*, which is the Hispaniolan Vireo. These island populations demonstrate consistent, diagnosable differences from mainland groups, suggesting long periods of separation, possibly due to founder effects or historical sea-level fluctuations that isolated them genetically.
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