Ole Jorgen Liodden / Sedge wren (Cistothorus platensis hornensis) Ushuaia, Argentina, February.

Mike Wilkes / Wren (Troglodytes troglodytes) perched on grass. Warwickshire, UK, November.

Gerrit Vyn / Sedge Wren (Cistothorus platensis) camouflaged and perched on dry foliage, Alberta, Canada. May.

Pete Oxford / Grass / Short-billed Marsh Wren (Cistothorus platensis falklandicus) Singing in long grass. This species in endemic, and is the smallest of the resident birds. Sea Lion Island. South of mainland east...

Pete Oxford / Grass / Short-billed Marsh Wren (Cistothorus platensis falklandicus) Singing in long grass. This species in endemic, and is the smallest of the resident birds. Sea Lion Island. South of mainland east...

Marie Read / Sedge / Grass Wren (Cistothorus platensis), singing, Gouverneur, New York, USA

Hermann Brehm / Grass wren {Cistothorus platensis} Torres del Paine NP, Chile

Gabriel Rojo / Wren-like rushbird (Phleocryptes melanops) perched among reeds, La Pampa Province, Patagonia, Argentina.

Doug Gimesy / Superb fairywren (Malurus cyaneus) male, portrait, Victoria, Australia. August.

Marie Read / Male Sedge wren (Cistothorus platensis) perched in Willow (Salix sp) tree, singing to attract mate, Stutsman County, North Dakota, USA. June.

Etienne Littlefair / Eyrean Grasswren (Amytornis goyderi), perched on cane grass, Andado Station, Northern Territory, Australia, November.

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