Donald M. Jones / Cactus Wren (Campylorhynchus brunneicapillus) calling, southwestern Arizona

Donald M. Jones / Cactus Wren (Campylorhynchus brunneicapillus) pair with one calling, southwestern Arizona

Alan Murphy/ BIA / Marsh Wren (Cistothorus palustris) calling, British Columbia, Canada

Alan Murphy/ BIA / Carolina Wren (Thryothorus ludovicianus) with insect prey, Texas

Alan Murphy/ BIA / Cactus Wren (Campylorhynchus brunneicapillus) calling from cactus, California

Donald M. Jones / Cactus Wren (Campylorhynchus brunneicapillus) calling, southern Arizona

Donald M. Jones / Cactus Wren (Campylorhynchus brunneicapillus) calling, southern Arizona

Alan Murphy / Cactus Wren (Campylorhynchus brunneicapillus), Arizona

Alan Murphy / Marsh Wren (Cistothorus palustris) calling, British Columbia, Canada

Alan Murphy / Marsh Wren (Cistothorus palustris) calling, British Columbia, Canada

Alan Murphy / Marsh Wren (Cistothorus palustris) calling from cattail, British Columbia, Canada

Pal Hermansen / Young wren (Troglodytes troglodytes) in an old abandoned car in a 'car graveyard' Bastnas, Sweden