Our collaborative work on warblers is primarily led by Dr. David Toews and his group at Pennsylvania State University as a part of their research on the diversification in the New World wood warblers.

These are probably the best known and most frequently encountered wood warblers. Although variable, all yellow-rumped warblers possess a bright yellow rump, which is shared with only 2 other species.

This rather yellowish green warbler, named for its least conspicuous character, forages lower than many species. It lays 4 to 5 eggs (March–May in west, June in east) in its nest on or near the ...

Because inbreeding can negatively impact survival and reproduction, the results could guide continuing conservation efforts for Kirtland's warblers, whose populations still rely on extensive ...