John Shaw / Yellow warbler (Setophaga petechia aureola) on lava rocks. Isabela Island, Galapagos. May.

Alan Murphy / Golden-winged Warbler (Vermivora chrysoptera) male, Texas

Steve Gettle / Golden-winged Warbler (Vermivora chrysoptera) calling, Michigan

Jeff Foott / Yellow warbler (Dendroica petechia) at Yellow-Bellied Sapsucker site (Sphyrapicus varius) damage in tree to eat sap. Sapsuckers damages trees trunks to feed on sap. Teton National Park, Wyoming, USA....

E.J. Peiker/ BIA / Golden-winged Warbler (Vermivora chrysoptera) male, Texas

Barry Mansell / Prothonotary warbler (Protonotaria citrea) male, Florida,USA

Barry Mansell / Prothonotary warbler (Protonotaria citrea) male, Florida,USA

Barry Mansell / Prothonotary warbler (Protonotaria citrea) male, Florida,USA

Phil Savoie / Yellow warbler (Dendroica petechia) male singing. Bozeman, Montana, USA.

Phil Savoie / Yellow warbler (Dendroica petechia) male singing. Bozeman, Montana, USA.

Phil Savoie / Yellow warbler (Dendroica petechia) collecting nesting material from Bulrush cattail (Typha sp) Bozeman, Montana.

Phil Savoie / Yellow warbler (Dendroica petechia) collecting nesting material from Bulrush cattail (Typha sp) Bozeman, Montana.