Amakihi Honeycreeper

Detailed Description
During the past decade populations of this honeycreeper have begun to rebound at lower elevations on most of the main Hawaiian Islands, in spite of high prevalence of infection with avian malaria. Natural selection for resistance to avian malaria is the leading explanation for this rebound and recent genetic studies indicate that these populations are genetically distinct from their higher elevation counterparts.
Sources/Usage
Public Domain.