What is Wren?
{{Taxobox | name = Wrens | image = Крапивник - орешек (Troglodytes troglodytes), Битцевский лес.jpg | image_width = 250px | image_caption = The wren in [[Russia]], ''Troglodytes troglodytes'' | regnum = [[Animal]]ia | phylum = [[Chordate|Chordata]] | classis = [[bird|Aves]] | ordo = [[Passeriformes]] | subordo = [[Passeri]] | superfamilia = [[Certhioidea]] | familia = '''''Troglodytidae''''' | familia_authority = [[William Swainson|Swainson]], 1832 | subdivision_ranks = Genera}} {{Listen |filename=Troglodytes_troglodytes_song.ogg |title=''Troglodytes_troglodytes'' song |description= |format=[[Ogg]]}} [[File:Cistothorus palustris Iona.jpg|thumb|right|250px|The [[marsh wren]], ''Cistothorus palustris'', one of the many American wrens]] The '''wrens''' are [[passerine]] birds in the mainly [[New World]] [[family (biology)|family]] '''Troglodytidae'''. There are about 80 [[species]] in about 20 [[genera]]. The Wren is also the shortest bird in Britain.<ref>{{Cite web|url=https://www.livingwithbirds.com/tweetapedia/21-facts-on-wren|title=21 Facts on Wren - Tweetapedia - Living with Birds|website=www.livingwithbirds.com|access-date=2020-07-20}}</ref> Originally, the word 'wren' was (and still is) used for the [[species]] found in [[Europe]], western [[Asia]] and [[North Africa]]. The word came into English after a long history in the [[German language|Germanic languages]]. The bird's scientific name is ''Troglodytes troglodytes''.<ref>[http://www.bbc.com/earth/story/20150417-vote-for-britains-national-bird ''BBC News'']</ref><ref name=Britannica>{{cite encyclopedia |url= http://www.britannica.com/EBchecked/topic/649412/wren |title=wren (bird) -- Britannica Online Encyclopedia |first= |encyclopedia=britannica.com |year=2012 |accessdate=27 May 2012}}</ref> When European biologists got to the [[Americas]], they soon realised that the family of wrens has many species, and is mainly an American family of birds. Most wrens are about 10 centimetres (4 inches) long, brown (both sexes), and has a short bill that curves sligh