Hermit warbler (Dendroica occidentalis), also known as a black-throated green warbler, in spring, Connecticut. Although a common resident of North America's coniferous forests, this bird is incredibly shy and rarely seen.
By: JIM ZIPP
Sedge Warbler -Acrocephalus schoenobaenus-, perched on a reed, Illmitz, Lake Neusiedl, Burgenland, Austria, Europe
By: Friedhelm Adam
Western Palm Warbler (Setophaga palmarum palmarum), Michigan