What population trend has been noted for the White-eyed Vireo at the extreme northeastern edge of its breeding range in Massachusetts?
Answer
The species is described as local and strongly declining
Although the White-eyed Vireo is globally categorized as Least Concern due to widespread populations, local trends reveal vulnerabilities, particularly at the margins of its range. In Massachusetts, which sits at the extreme northeastern boundary of its breeding area, the species faces significant difficulty. Data from atlas surveys indicate that the population there is considered both local and strongly declining. Specifically, between the first and second major atlas surveys, the species vanished from almost half of the breeding blocks it had previously occupied in that region, suggesting sensitivity to subtle changes in habitat quality or climate affecting northern scrub growth.
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