Shattil & Rozinski / Longbilled marsh wren {Cistothorus palustris} singing on bullrushes while 'doing the splits', Colorado, USA

Loic Poidevin / Longbilled marsh wren (Cistothorus palustris) Quebec, Canada, May

Loic Poidevin / Longbilled marsh wren (Cistothorus palustris) singing on bullrush, Quebec, Canada, May

Loic Poidevin / Longbilled marsh wren (Cistothorus palustris) profile portrait, Quebec, Canada, May

Gerrit Vyn / Marsh Wren (Cistothorus palustris) singing. Snohomish County, Washington, USA, April.

Gerrit Vyn / Marsh Wren (Cistothorus palustris) singing. Snohomish County, Washington, USA, April.

Gerrit Vyn / Marsh Wren (Cistothorus palustris) displaying. Snohomish County, Washington, USA, April.

Shattil & Rozinski / Longbilled marsh wren {Cistothorus palustris} nest material from Cattail reed, USA

Nigel Bean / Longbilled marsh wren {Cistothorus palustris} on bullrush, California, USA

Nigel Bean / Longbilled marsh wren singing from top of bullrush. California, USA.

Marie Read / Marsh wren (Cistothorus palustris) singing from cattail perch in marsh, Bear River Migratory Bird Refuge, Utah, USA, May.