These six blue-feathered birds showcase Earth's avian diversity and beauty, highlighting the incredible variety and splendor ...

Hybridization is commonly observed between a number of warbler species and, while this does not make it easier to identify different species in the field, it opens up many opportunities to study the ...

When Logan Parker first sees a male, black-throated blue warbler near his Maine home each spring, two things strike him about ...

Researchers found that birds that migrate between North America to Central America each year, including black-throated blue warblers, have shifted the timing of their spring and fall migrations over ...