{{Taksonomia/eläimet 
| nimi = Peukaloiset
| status =
| status_ref = 
| kuva = Kaktuszaunkoenig.jpg
| leveys = 250
| kuvateksti = Isopeukaloinen (''Campylorhynchus brunneicapillus'')
| domeeni = Eukaryootit ''Eucarya''
| kunta = Eläinkunta ''Animalia''
| pääjakso = Selkäjänteiset ''Chordata''
| alajakso = Selkärankaiset ''Vertebrata''
| luokka = Linnut ''Aves''
| lahko = Varpuslinnut ''Passeriformes''
| heimo = '''Peukaloiset''' ''Troglodytidae''
| heimo_auktori = Swainson, 1832
| kaksiosainen =
| kaksiosainen_auktori =
| wikispecies = Troglodytidae
| commons = Troglodytidae
}}
'''Peukaloiset''' (''Troglodytidae'') on heimo pienenkokoisissa varpuslinnuissa. Niitä löytyy luonnonvaraisina pääasiassa ainoastaan Keski-, Pohjois- ja Etelä-Amerikasta. Ainoastaan yksi laji, sademetsiin. Peukaloisista suuri osa on pieniä ja huomaamattomia, mutta niiden laulu on kovaa. Peukaloisten siivet ovat lyhyet, ja niiden nokka on loivasti alaspäin kaartuva. Jotkin lajit pitävät pyrstöään pystyssä. Peukaloiset ovat hyönteissyöjiä, jotkin lajit tosin syövät myös kasvejakin. Peukaloisten väri on arkinen, hallitsevana värinä on ruskea, harmaa, musta tai valkoinen. Pienin laji on valkovatsapeukaloinen (10 cm) ja suurin laji on isopeukaloinen (22 cm).

Peukaloisiin kuuluu 17 sukua ja 77 lajia.<ref></ref>

==Suvut ja lajit==
<big>'''Kerttupeukaloiset ''Odontorchilus'''''</big>
* Andienkerttupeukaloinen ''Odontorchilus branickii''
* Brasiliankerttupeukaloinen ''Odontorchilus cinereus''

<big>'''Naskalipeukaloiset ''Hylorchilus'''''</big>
* Naskalipeukaloinen ''Hylorchilus sumichrasti''
* Valkokurkkupeukaloinen ''Hylorchilus navai''

<big>'''Kanelipeukaloiset ''Cinnycerthia'''''</big>
<table><tr valign=top><td>
* Kanelipeukaloinen ''Cinnycerthia unirufa''
* Pilvimetsäpeukaloinen ''Cinnycerthia olivascens''
<td>
* Punanpeukaloinen ''Cinnycerthia fulva''
* Seepiapeukaloinen ''Cinnycerthia peruana''
</table>

<big>'''Suopeukaloiset ''Cistothorus'''''</big>
<table><tr valign=top><td>
* Kolumbianpeukaloinen ''Cistothorus apolinari''
* Sarapeukaloinen ''Cistothorus platensis''
<td>
* Suopeukaloinen ''Cistothorus palustris''
* Venezuelanpeukaloinen ''Cistothorus meridae''
</table>

<big>'''Helmipeukaloiset ''Campylorhynchus'''''</big>
<table><tr "valign"=top><td>
* Helmipeukaloinen ''Campylorhynchus jocosus''
* Isopeukaloinen ''Campylorhynchus chiapensis''
* Jukataninpeukaloinen ''Campylorhynchus yucatanicus''
* Kaktuspeukaloinen ''Campylorhynchus brunneicapillus''
* Kauluspeukaloinen ''Campylorhynchus rufinucha''
* Köynnöspeukaloinen ''Campylorhynchus zonatus''
* Mäntypeukaloinen ''Campylorhynchus megalopterus''
<td>
* Piilopeukaloinen ''Campylorhynchus fasciatus''
* Rastaspeukaloinen ''Campylorhynchus turdinus''
* Tyrannipeukaloinen ''Campylorhynchus griseus''
* Täpläpeukaloinen ''Campylorhynchus gularis''
* Valkopääpeukaloinen ''Campylorhynchus albobrunneus''
* Viiruselkäpeukaloinen ''Campylorhynchus nuchalis''
</table>

<big>'''Tarhapeukaloiset ''Thryomanes'''''</big>
* Socorronpeukaloinen ''Thryomanes sissonii''
* Tarhapeukaloinen ''Thryomanes bewickii''

<big>'''Rusopeukaloiset ''Thryothorus'''''</big>
<table><tr valign=top><td>
* Aavikkopeukaloinen ''Thryothorus superciliaris''
* Bolivianpeukaloinen ''Thryothorus guarayanus''
* Ecuadorinpeukaloinen ''Thryothorus euophrys''
* Harmaapeukaloinen ''Thryothorus griseus''
* Inkapeukaloinen ''Thryothorus eisenmanni''
* Jokipeukaloinen ''Thryothorus semibadius''
* Kahvipeukaloinen ''Thryothorus nicefori''
* Kiipijäpeukaloinen ''Thryothorus pleurostictus''
* Kirjorintapeukaloinen ''Thryothorus sclateri''
* Mangrovepeukaloinen ''Thryothorus leucotis''
* Matkijapeukaloinen ''Thryothorus ludovicianus''
* Mayapeukaloinen ''Thryothorus felix''
* Mustaposkipeukaloinen ''Thryothorus coraya''
<td>
* Mustarintapeukaloinen ''Thryothorus atrogularis''
* Nokipääpeukaloinen ''Thryothorus spadix''
* Pisamapeukaloinen ''Thryothorus maculipectus''
* Punarintapeukaloinen ''Thryothorus rutilus''
* Raitapeukaloinen ''Thryothorus nigricapillus''
* Rusopeukaloinen ''Thryothorus modestus''
* Sinaloanpeukaloinen ''Thryothorus sinaloa''
* Taituripeukaloinen ''Thryothorus rufalbus''
* Trillipeukaloinen ''Thryothorus longirostris''
* Valkorintapeukaloinen ''Thryothorus fasciatoventris''
* Verkkopeukaloinen ''Thryothorus thoracicus''
* Viiksipeukaloinen ''Thryothorus genibarbis''
* Viirukurkkupeukaloinen ''Thryothorus leucopogon''
</table>

<big>'''Peukaloiset ''Troglodytes'''''</big>
<table><tr valign=top><td>
* Andienpeukaloinen ''Troglodytes solstitialis''
* Clarioninpeukaloinen ''Troglodytes tanneri''
* Guatemalanpeukaloinen ''Troglodytes rufociliatus''
* Okrapeukaloinen ''Troglodytes ochraceus''
<td>
* Paramopeukaloinen ''Troglodytes monticola''
* Peukaloinen ''Troglodytes troglodytes''
* Pihapeukaloinen ''Troglodytes aedon''
* Tepuinpeukaloinen ''Troglodytes rufulus''
</table>

{{Taxobox
| name = Wrens
| image = Cactuswren63.jpg
| image_width = 240px
| image_caption = Cactus Wren<br/>''Campylorhynchus brunneicapillus''
| regnum = Animalia
| phylum = Chordata
| classis = Aves
| ordo = Passeriformes
| subordo = Passeri
| familia = '''''Troglodytidae'''''
| familia_authority = Swainson, 1832
| subdivision_ranks = Genera
| subdivision = 
''Odontorchilus''<br>
''Salpinctes''<br>
''Microcerculus''<br>
''Campylorhynchus''<br>
''Catherpes''<br>
''Hylorchilus''<br>
''Thryomanes''<br>
''Thryothorus''<br>
''Cinnycerthia''<br>
''Cantorchilus''<br>
''Thryophilus''<br>
''Pheugopedius''<br>
''Cyphorhinus''<br>
''Uropsila''<br>
''Thryorchilus''<br>
''Henicorhina''<br>
''Troglodytes''<br>
''Cistothorus''<br>
''Ferminia''
}}

The '''wrens''' are family '''Troglodytidae'''. There are about 80 genera, though the name is also ascribed to other unrelated birds throughout the world. Only one species occurs in the Old World, where it is commonly known simply as the "Wren"; it is called Winter Wren in North America. 

The 27 Australasian "wren" species in the family Maluridae are unrelated, as are the New Zealand wrens in the family Acanthisittidae, the antwrens in the family Thamnophilidae, and the wren-babblers of the family Timaliidae.

==Description==

Troglodyte means "cave-dweller", and the wrens get their scientific name from the tendency of some species to forage in dark crevices. They are mainly small and inconspicuous, except for their loud and often complex songs. These birds have short wings and a thin down-turned bill. Several species often hold their tails upright. All are insectivorous, though some also feed on vegetable matter, and the larger—sometimes notably bold—species in of the genus ''Campylorhynchus'' will take small vertebrates (e.g. lizards).

They range in size from the White-bellied Wren, which averages under 10 centimetres (4&nbsp;in) and , to the Giant Wren, which averages about 22&nbsp;cm (9&nbsp;in) and 50&nbsp;g (2&nbsp;oz). The dominating colours are grey, brown, black and white, and most species show some barring, especially to tail and/or wings. 

The various species occur in a wide range of habitats, ranging from dry, sparsely wooded country to rainforest. The vast majority are found at low levels, but some members of the genus ''canopy height. A few species, notably the Winter Wren and the House Wren, are often associated with humans. Most species are non-migratory, remaining in Central and South America all year round, but the few temperate species typically migrate to warmer climes in winter. Wrens build dome-shaped nests, and may be either monogamous or polygamous, depending on species.<ref name=EoB></ref>

==Genus list in taxonomic order==
Revised following Martínez Gómez ''et al.'' (2005) and Mann ''et al.'' (2006).  The taxonomy of some groups is highly complex, and future species-level splits are likely. Additionally, undescribed taxa are known to exist. The Black-capped Donacobius is an enigmatic species traditionally placed with the wrens more for lack of a more apparent alternative and/or thorough study. It was more recently determined to be most likely closer to certain "warblers", possibly the newly-established Megaluridae, and might constitute a monotypic family (Alström ''et al.'' 2006).

'''FAMILY: TROGLODYTIDAE'''
*'''Genus ''Odontorchilus'''''
** Grey-mantled Wren (''Odontorchilus branickii'')
** Tooth-billed Wren (''Odontorchilus cinereus'')

*'''Genus ''Salpinctes'''''
** Rock Wren (''Salpinctes obsoletus'')

*'''Genus ''Microcerculus'''''
** Flutist Wren (''Microcerculus ustulatus'')
** Southern Nightingale-Wren (''Microcerculus marginatus'')
** Northern Nightingale-Wren (''Microcerculus philomela'')
** Wing-banded Wren (''Microcerculus bambla'')

*'''Genus ''Catherpes'''''
** Canyon Wren (''Catherpes mexicanus'')

*'''Genus ''Hylorchilus'''''
** Nava's Wren (''Hylorchilus navai'')
** Slender-billed Wren (''Hylorchilus sumichrasti'')

*'''Genus ''Campylorhynchus'''''
** Band-backed Wren (''Campylorhynchus zonatus'')
** Bicolored Wren (''Campylorhynchus griseus'')
** Boucard's Wren (''Campylorhynchus jocosus'')
** Cactus Wren (''Campylorhynchus brunneicapillus'')
** Fasciated Wren (''Campylorhynchus fasciatus'')
** Giant Wren (''Campylorhynchus chiapensis'')
** Gray-barred Wren (''Campylorhynchus megalopterus'')
** Rufous-naped Wren (''Campylorhynchus rufinucha'')
** Spotted Wren (''Campylorhynchus gularis'')
** Stripe-backed Wren (''Campylorhynchus nuchalis'')
** Thrush-like Wren (''Campylorhynchus turdinus'')
** White-headed Wren (''Campylorhynchus albobrunneus'')
** Yucatan Wren (''Campylorhynchus yucatanicus'')

*'''Genus ''Thryomanes'''''
** Bewick's Wren (''Thryomanes bewickii'')

*'''Genus ''Thryothorus'''''
** Carolina Wren (''Thryothorus ludovicianus'') 
*** White-browed Wren (''Thryothorus (ludovicianus) albinucha'') 
right|232px|thumb|[[Bewick's Wren (''Thryomanes bewickii'')]]

*'''Genus ''Cinnycerthia'''''
** Fulvous Wren (''Cinnycerthia fulva'')
** Peruvian Wren (''Cinnycerthia peruana'')
** Rufous Wren (''Cinnycerthia unirufa'')
** Sharpe's Wren (''Cinnycerthia olivascens'')

*'''Genus ''Cantorchilus''''' (formerly included in ''Thryothorus'')<!-- Condor109:686 -->
** Stripe-breasted Wren (''Cantorchilus thoracicus'')
** Stripe-throated Wren (''Cantorchilus leucopogon'')
** Plain Wren (''Cantorchilus modestus'')
*** Canebrake Wren (''Cantorchilus (modestus) zeledoni'')
** Riverside Wren (''Cantorchilus semibadius'')
** Bay Wren (''Cantorchilus nigricapillus'')
** Superciliated Wren (''Cantorchilus superciliaris'')
** Buff-breasted Wren (''Cantorchilus leucotis'') (probably  not monophyletic)
** Fawn-breasted Wren (''Cantorchilus guarayanus'')
** Long-billed Wren (''Cantorchilus longirostris'')

*'''Genus ''Thryophilus''''' (formerly included in  ''Thryothorus'')<!-- Condor109:686 -->
** Gray Wren (''Thryophilus griseus'') (placement in genus requires confirmation)
** Rufous-and-white Wren (''Thryophilus rufalbus'')
** Niceforo's Wren (''Thryophilus nicefori'')
** Sinaloa Wren (''Thryophilus sinaloa'')
** Banded Wren (''Thryophilus pleurostictus'')