指分佈於現今加拿大亞伯達省卡加利市北方的美洲原住民風格與文化，屬於最北方的尼茲達比部族（Niitsítapi）（原始的人）。當歐洲探險家行至美洲西部時，可能因先遇到西克西洽族人，便誤將所有屬黑腳聯盟的人視為黑腳族。黑腳聯盟中的四個尼茲達比部族為西克西洽族、卡納族（Kainaa）（布盧德族）、阿帕托斯比卡尼（Aapatohsipikani）（北方皮埃甘族（Northern Peigan）），與阿姆斯卡比比卡尼（Aamsskaapipikani）（南方埃甘族（South Peigan）或蒙大拿黑腳族）。

西克西洽(P,,U,繁體中文-偏好,D,U,U)
hsi k'o hsi ch'ia(P,,U,韋氏拼音-偏好,UF,U,U)
xī kè xī qià(P,,U,漢語拼音-偏好,UF,U,U)
xi ke xi qia(P,,U,漢語拼音(無聲調)-偏好,UF,U,U)
Siksika(P,,U,英文-偏好,D,U,A)
Siksika(P,,U,荷蘭語-偏好,D,U,U)
Siksika(P,,U,西班牙語-偏好,D,U,U)
Siksiká(,U,英文-非偏好,UF,U,U)
Siksiká(,U,Blackfoot-非偏好,UF,U,U)
Blackfoot(Blackfoot subdivision)　(,U,英文-非偏好,UF,U,U)
Blackfeet(Blackfoot subdivision)　(,U,英文-非偏好,UF,U,U)
Northern Blackfoot(,U,英文-非偏好,UF,U,U)

藝術與建築詞典根目錄
....風格與時代層面
........風格與時代
............<依區域區分之風格與時代>
................<美洲>
....................美洲印第安人
........................<北美洲原住民風格>
............................大平原印第安人
................................黑腳 (阿爾岡琴語系)
....................................西克西洽

distinguished from....	黑腳(阿爾岡琴語系)
distinguished from....	黑腳(特頓)

英文....

Style and culture of the Native American peoples currently occupying an area north of Calgary, Alberta, Canada, who were the northernmost of the Niitsítapi (Original People). When European explorers travelled west, they probably encountered the Siksika people first and erroneously assumed that all people of the Blackfoot Confederacy were Blackfoot. The four Niitsítapi nations of the Blackfoot Confederacy are the Siksika, Kainaa (Blood), Aapatohsipikani (Northern Peigan), and Aamsskaapipikani (South Peigan or Montana Blackfoot).

西克西洽............	[AS-Academia Sinica]
.................	AAT-Taiwan 借詞編輯與使用原則 (2013)
Siksika............	[VP]
.................	Native Languages of America (n.d.) accessed 29 June 2005
.................	TAA database (2000-)
.................	AAT-Ned (1994-)
.................	Encyclopedia Britannica Online (2002-) "Blackfoot," accessed 29 June 2005
Siksiká............	[VP]
.................	Encyclopedia Britannica Online (2002-)
Blackfoot(Blackfoot subdivision)............	[VP]
.................	Native Languages of America (n.d.) accessed 29 June 2005
.................	Encyclopedia Britannica Online (2002-) "Blackfoot," accessed 29 June 2005
Blackfeet(Blackfoot subdivision)............	[VP]
.................	Bunting Visual Resources Library, University of New Mexico (2005-)
Northern Blackfoot............	[VP]
.................	Encyclopedia Britannica Online (2002-) "Blackfoot," accessed 29 June 2005
Subject:............	[Bureau AAT]
.................	Bunting Visual Resources Library, University of New Mexico (2005-)
.................	Native Languages of America (n.d.) accessed 29 June 2005
.................	Bureau AAT, RKD
.................	Encyclopedia Britannica Online (2002-) "Blackfoot," accessed 29 June 2005

Getty AAT: 300265482 Getty AAT: http://www.getty.edu/vow/AATFullDisplay?find=costume&logic=AND¬e=&subjectid=300265482
聯合目錄： 西克西洽 、hsi k'o hsi ch'ia 、xī kè xī qià 、xi ke xi qia 、Siksika 、Siksiká 、Blackfoot 、Blackfeet 、Northern Blackfoot 、Siksika 、Siksika 、Siksiká