Rare mockingbird sighting in Massachusetts hints at climate change's impact on bird habitats.

A nature enthusiast in Athol, Massachusetts, spotted a Northern Mockingbird at their feeder in December, a rare sight in their higher-altitude neighborhood. Over the past ten years, mockingbirds have been seen only five other times. The author suggests that climate change might be expanding the birds' habitat, as Carolina Wrens have also become more frequent visitors. This unusual sighting highlights the potential environmental impacts of climate change on wildlife patterns.