A tiny, fast-moving warbler is always a challenge for birders to identify. Look for chestnut streaks on the bird’s sides to know for sure whether you’ve spotted a chestnut-sided warbler.

Study reveals that songbirds share trees by foraging differently, though their diets often overlap, showing how similar ...

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 ...

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 ...

Even on its breeding grounds, Swainson’s Warbler is one of the hardest warblers to locate during the breeding season, though ...

Whole-genome analysis raises concerns about the rare songbird, the authors of a recent study say, but could also help with ...

Although variable, all yellow-rumped warblers possess a bright yellow rump, which is shared with only 2 other species. The yellow-rumped’s unique ability to digest the waxes in bayberries allows ...