"I spotted this bird (above) in my backyard near a warbler, but I couldn't identify its species. What kind of bird is it?" asks Birds & Blooms reader Sandra Castle of Vero Beach, Florida Birding ...

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 ...