fschieber/wit-captions huggingface dataset:
Carte des densités de population (millésimée 2016) des communes de la communauté de communes du Perche. Composition en communes au 1er janvier 2019[5].
Français : Carte des densités de population (millésimée 2016) des communes de la communauté de communes la Communauté de communes du Perche, département d'Eure-et-Loir, France. Composition au 1er janvier 2019.
A U.S. Army paratrooper of the 82nd Airborne Division deployed in Afghanistan in 2019 wearing the IHPS with a Peltor Comtac III communications headset.
English: U.S. Army Staff Sgt. Jason N. Bobo, assigned with C Troop, 5th Squadron, 73rd Cavalry Regiment, 3rd Brigade Combat Team, 82nd Airborne Division helps secure the helicopter landing zone (HLZ) as a CH-47 Chinook helicopter prepares to land in preparation for the extraction (EXFIL) of Afghan and U.S. Soldiers following a key leader engagement Dec. 29 in Southeastern Afghanistan.
Momento crítico en la carrera, Kubica adelanta a su compañero de equipo Nick Heidfeld y consigue el liderazgo tras haber parado en boxes ambos pilotos.
Robert Kubica passes BMW Sauber team-mate Nick Heidfeld during the 2008 Canadian Grand Prix, with Fernando Alonso following.
Intagning av nya studenter vid Universidad de Talca. Uppgifter som skall utföras med förbundna ögon är vanliga vid initieringsriter för nya studerande.
Español: Mechoneo en la carrera de Diseño de la Universidad de Talca.
Щитовой вольтметр М63 1944 года выпуска с логотипом завода в составе радиостанции А-7-Б, экспонирующейся в Военно-историческом музее г. Санкт-Петербург
Русский: Вольтметр М63 изготовлен на Государственном союзном заводе №531 в составе радиостанции A-7-В English: Type M63 panel voltmeter. Manufacturer: 'Vibrator' plant, Leningrad, USSR. Installed in the A-7-B transceiver.
Осада Парижа викингами в 845 году (гравюра XIX века, размеры и качество каменных укреплений преувеличены в господствовавшем тогда стиле Виолле-ле-Дюка)
English: Viking Ships besieging Paris. Deutsch: Belagerung Paris' durch eine Wikingerflotte Magyar: Viking hajók Párizs támadása közben.
Das Kreuz zur Erinnerung an die Gemeindemissionen. Es wurde 1932 aus 200 Jahre alten Eichenbalken des ehemaligen Haskenskotten von Paul Lohn gefertigt.
Deutsch: Essen, Kirche St. Fronleichnam: Das Kreuz zur Erinnerung an die Gemeindemissionen gehört zum festen Strassenbild in Bochold.
Cúmul estel·lar obert M11, el cúmul de l'ànec salvatge. Es pot veure com presenta una estructura poc densa i està format per estels jóvens i brillants.
Los wings o alas son 3/4 o backs que se ubican como últimos jugadores en cada uno de los laterales de la cancha, habitualmente con los números 11 y 14.
Español: Rugby posiciones. Wing 3/4
Some of the people behind the film. From left: Producer Teresa Alldén-Willey, actors Anja Lundqvist and William Ringström, and producer Patrick Ryborn.
Svenska: Presentationen av Sune i fjällen Filmhuset i Stockholm den 18 augusti 2014.
Forum Parisinum a caelo anno 1931 visum. Inde extendit via sub Tiliis, cuius ad dextrum latus adiacet deversorium Adlon (Archivum Foederale Germanicum)
For documentary purposes the German Federal Archive often retained the original image captions, which may be erroneous, biased, obsolete or politically extreme. Berlin; Brandenburger Tor und Unter den Linden [Luftaufnahme] Okt. 1931 Information added by Wikimedia users.Deutsch: Berlin.- Pariser Platz mit Brandenburger Tor, Hotel Adlon, im Hintergrund die Straße Unter den Linden Français : Berlin.- Pariser Platz avec la porte de Brandebourg, l'hôtel Adlon, au fond la rue Unter den Linden
João Bosco (bateria), Marcos Yallouz (baixo), Rodrigo Tozzette (guitarra e vocal), Fábio "Corvo" Terra (guitarra) e Alex "Fralda" Cavalheri (teclados).
Português: odrigo Tozzette (guitarra e vocal), Marcos Yallouz (baixo), Fábio "Corvo" Terra (guitarra), Alex "Fralda" Cavalheri (teclados) e João Bosco (bateria)
Algoritm de optimizare al coloniei de furnici pentru o PCV cu 7 orașe: liniile roșii și groase în harta de feromoni indică prezența mai multor feromoni
English: Ant colony optimization algorithm for a TSP with 7 cities
Ralf Schumacher in azione nel corso del Gran Premio di Gran Bretagna: il pilota tedesco sarà costretto al ritiro a causa di un guasto alla sospensione.
Ralf Schumacher driving for Toyota at the 2007 British Grand Prix.
Upodobitev dveh Mokronoških grbov pod zapisom "nassenfues" v Veliki grbovni knjigi (Opus insignium armorumque 1687-1688), avtor: Janez Vajkard Valvasor
Slovenščina: Valvasor Grbovna knjiga Mokronog
Lilla Kyrkogatan är en tvärgata, som går mellan Drottninggatan och Kyrkogatan.
Foto från 1888 av Wilhelm Berg, Bildsamlingen vid Göteborgs stadsmuseum.
Svenska: Lilla Kyrkogatan i Göteborg med de udda husen 1, 3 och 5, "Lilla Kyrkgatan åt söder i vestra husraden från hörnet af Drottninggatan. I fonden Domkyrkan 1888." GMA-14389-22.
Aussicht vom Gipfel des Großen Waxensteins (2277 m). In der Bildmitte ist der Jubiläumsgrat zwischen Alpspitze (links) und Zugspitze (rechts) zu sehen.
English: Summit view from top of Grosser Waxenstein (2277 m) Deutsch: Aussicht vom Gipfel des Großen Waxensteins (2277 m)
Der armenische Außenminister Nalbandjan und der türkische Außenminister Davutoğlu beim Unterzeichnen der (später gescheiterten) Normalisierungsverträge
English: Foreign Ministers of Turkey and Armenia signing the protocols on 10 October 2009, Zurich, Switzerland
Testa in marmo di Teodosio II; Crisafio esercitò un'enorme influenza sull'imperatore, tanto da divenire il vero dominatore della scena politica romana.
English: Bust of Byzantine Empreror Theodosius II (reigned 408–450 AD). Marble, 5th century AD. Français : Buste de l'empereur byzantin Théodose II (règne 408-450 ap. J.-C.). Marbre, Ve siècle ap. J.-C.
Skottehytta - trạm cực của trường đến năm 2009. Kể từ đó, Trạm Cực của Đại học Adam Mickiewicz được đặt trong một căn nhà nhỏ ở phía đối diện của vịnh.
Polski: Skottehytta w zatoce Petuniabukta na Spitsbergenie - siedziba stacji polarnej Uniwersytetu Adama Mickiewicza, 2007. English: Skottehytta in Petuniabukta bay, Spitsbergen - polar base of Adam Mickiewicz University in Poznań, Poland, 2007. Français : Base polaire de l'Université Adam Mickiewicz de Poznan (Pologne) à Skottehytta dans la baie de Petuniabukta, au Spitzberg, 2007.
La Galleria degli arazzi con gli affreschi di Giambattista Tiepolo a Palazzo Clerici: uno degli interni più significativi del panorama barocco milanese
Italiano: Palazzo Clerici a Milano - Galleria degli arazzi, con l'affresco del Tiepolo (1741).
El duque de San Pedro de Galatino. Busto realizado en mármol por Mariano Benlliure en 1931, conservado en el Museo Casa de los Tiros de Granada.(1928).
Español: Busto de Julio Quesada-Cañaveral, duque de san Pedro de Galatino realizado en 1931 por Mariano Benlliure, conservado en el Museo Casa de los Tiros de Granada
Вид на церковь Ризоположения, находящуюся на территории Кирилло-Белозерского монастыря во временном треугольном технологическом павильоне. Март 2011 г.
English: View of the Church of the Deposition of the Robe after the restoration of 2010 being under the triangular temporary tent. Kirillo-Belozersky Monastery. Vologodskaya oblast. Russia Русский: Вид на Церковь Ризоположения из села Бородава после реставрации 2010-го года, находящуюся под временным треугольным технологическим тентом. Кирилло-Белозерский монастырь, город Кириллов, Вологодская область.
エジソンとライセンス契約を結んで商品化に取り組んだA・B・ディック社が1887年に発売を開始した「エジソン＝ミメオグラフ」。謄写器、鉄筆、ヤスリ盤、原紙、修正液、インク、ローラーなど一式を木箱に収めたセットで、日本の堀井謄写堂など各国の後発メーカーもこれを模倣した（A・B・ディック社広告、1889年）
Advertisement from 1889 for the Edison Mimeograph.
Grób Eugeniusza Smolińskiego ps. „Kazimierz Staniszewski” w Panteonie – Mauzoleum Wyklętych-Niezłomnych na Cmentarzu Wojskowym na Powązkach w Warszawie
Polski: Grób Eugeniusza Smolińskiego ps. „Kazimierz Staniszewski” w Panteonie – Mauzoleum Wyklętych-Niezłomnych na Cmentarzu Wojskowym na Powązkach w Warszawie.
Silla usada por el personaje Archie Bunker en la serie "All in the Family", actualmente exhibida en el Smithsonian National Museum of American History.
Archie Bunker's chair from All the the Family at the Smithsonian National Museum of American History.
Shobna Gulati (pictured) explained that her character Sunita Alahan finds Karl attractive because of his "naughty" side, and his own attentions to her.
w:Shobna Gulati
En el Centro Histórico de Trujillo se realiza el "Festival Internacional de ballet de Trujilloo", se observa parte de la arquitectura del Paseo Pizarro
English: Paseo Pizarro
Un étage supérieur du lanceur Delta III est descendu dans la chambre à vide de Plum Brook Station pour tester le fonctionnement du moteur dans le vide.
English: Contractors and NASA personnel lower a Delta III B-2 rocket into a test chamber at NASA's Plum Brook Station located at the Lewis Research Center, now John H. Glenn Research Center at Lewis Field.
De fire store byene i Randstad ligger alle mellom 30 og 50 minutters togtur fra hverandre, og danner et arbeidsmarked som er blant de største i Europa.
Brendan Fevola became the 1st Coleman Medallist to win the medal at a club and be traded to another the following year. He originally came from Carlton
English: Brendan Fevola at a Brisbane Lions pre-season training session. January 2010.
Yhdysvaltain entinen suurlähetystö vuonna 2008. Rakennuksessa toimii vallankumousmuseo sekä kirjakauppa. Banderollissa lukee isolla Kuolema Amerikalle.
Former US embassy in Tehran, Iran
Pont del Diable Martorell udalerrian (berreraikuntza gotikoa 1289an egina. Zubia, Llobregat eta Via Augusta lotzen dituen erromatar galtzadaren zati da
Сръбски доклад за клането в село Лисолай от страна на една гръцка чета за наказание за това, че населението е станало екзарийско, Битоля, 4 юни 1906 г.
Македонски: Српски извештај за колежот во село Лисолај од страна на една грчка чета како освета што населението преминало во егзархиско. Селото до пред две години било српско. (Битола, 4 јуни 1906) English: Serbian report for slaughter in the village Lisolaj by a Greek detachment as revenge on the population which passed in the Exarchate. (Bitola, June 4, 1906) This media file is produced by Wikipedian in Residence in Category:Wikipedian in Residence at DARM in 2016.
The Saints vuoden 1964 uusissa esiintymisasuissa ja uudessa kokoonpanossaan: uusina jäseninä vasemmalta Leif Roiha rummut ja oikealla Reima Helsi basso
English: The Saints band from Finland
Lynndie England pulls a leash attached to the neck of a prisoner in Abu Ghraib prison, who is forced to crawl on the floor, while Megan Ambuhl watches.
8:16 p.m., Oct. 24, 2003. The detainee "GUS" has a strap around his neck. The detainee is being pulled from his cell as a form of intimidation. SPC AMBUHL is in the picture observing the incident. CPL GRANER is taking the picture. SOLDIER: PFC ENGLAND; SPC AMBUHL. All caption information is taken directly from CID materials. U.S. Army / Criminal Investigation Command (CID). Seized by the U.S. Government.
Las tropas británicas en un desfile en la Puerta de Jaffa en diciembre de 1917, después de la captura de Jerusalén y la ocupación del sur de Palestina.
English: TITLE: Capture and occupation of Palestine by British. British troops on parade at Jaffa Gate CALL NUMBER: LC-M31- 60075-x[P&P] REPRODUCTION NUMBER: LC-DIG-matpc-11530 (digital file from original photo) RIGHTS INFORMATION: No known restrictions on publication. MEDIUM: 1 negative : glass, dry plate ; 4 x 5 in. CREATED/PUBLISHED: 1917 Dec. CREATOR: American Colony (Jerusalem). Photo Dept., photographer. NOTES: Creator name based on date. Title from negative sleeve. On guide card: Dec. 1917. Gift; Episcopal Home; 1978. SUBJECTS: Jerusalem. FORMAT: Dry plate negatives. PART OF: G. Eric and Edith Matson Photograph Collection REPOSITORY: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA DIGITAL ID: (digital file from original photo) matpc 11530 http://hdl.loc.gov/loc.pnp/matpc.11530 CONTROL #: mpc2005002810/PP
Een prent van de Hoytema State uit 1722, getekend door Stellingwerf.
 De tekening bevindt zich in het Prentenkabinet in het Fries Museum te Leeuwarden.
Frysk: In print fan de Hoytema State út 1722, tekene troch Stellingwerf De tekening is yn it Printekabinet fan it Frysk Museum. Nederlands: Een prent van de Hoytema State uit 1722, getekend door Stellingwerf. De tekening bevindt zich in het Prentenkabinet in het Fries Museum te Leeuwarden.
ムラサキウツボカズラは非常に幅広い多様性を示す。ここに示すのは分布域各地域における上位の袋である。 (左から右へ）

上段：スラウェシ島 400 m,・同 700 m,・ニューギニア 1500 m・同 1600 m

下段：同 1700 m (×2)・ ニューギニア 2300 m,・同 2600 m.
Nepenthes maxima near Puncak Jaya, Western New Guinea (~2600 m asl)
A sinistra cartuccia .375 Holland & Holland Magnum. Al centro cartuccia .338 Winchester Magnum e a destra moneta con diametro di circa 24 mm. per scala
Deutsch: .375 H&H Magnum (Links).338 Winchester Magnum (Rechts) – US Quarter als Maßstab.375 H&H Magnum (Links).338 Winchester Magnum (Rechts) - US Quarter als Maßstab. English: Belted.375 H&H Magnum (Left).338 Winchester Magnum (Right) US Quarter for scale. Suomi: .375 H&H Magnum (vas.) ja.338 Winchester Magnum (oik.). Italiano: A sinistra cartuccia.375 Holland & Holland Magnum. Al centro cartuccia.338 Winchester Magnum e a destra moneta con diametro di circa 24 mm. per scala.
Mosaici del sacello di San Vittore in ciel d'oro, basilica di Sant'Ambrogio. Rappresentano una dei pochissimi resti dell'antica basilica paleocristiana
Italiano: Milano. La cupola della cappella di San Vittore in ciel d'oro nella basilica di sant'Ambrogio. L'edificio risale al IV secolo d.C., il mosaico alla seconda metà del secolo V. Al centro: San Vittore. Foto di Giovanni Dall'Orto, 25-4-2007. English: Milan (Italy). The dome of the shrine of San Vittore in ciel d'oro, now a chapel of Sant'Ambrogio basilica. The building dates back to the 4th century, the mosaic to the second half of the 5th century. In the centre, Saint Victor. Picture by Giovanni Dall'Orto, April 25 2007.
L'Asbury Park Convention Hall, considerato luogo storico degli Stati Uniti d'America[14] e sala delle prove di Bruce Springsteen e della E Street Band.
English: Photo by User DCwom
Stasiun Tanggul, di sebelah selatan stasiun ini berdiri Masjid Riyadhus Sholihin, pusat aktifitas dakwah sekaligus kompleks makam Habib Sholeh Tanggul.
Bahasa Indonesia: Stasiun Tanggul, dipotret dari peron
Rocks in "Hidden Valley" near the "Pahrump Hills" on the slopes of Mount Sharp as viewed from the Curiosity Rover
(September 11, 2014; white balanced).
English: PIA19840: Secrets of 'Hidden Valley' on Mars http://photojournal.jpl.nasa.gov/catalog/PIA19840 An image taken at the "Hidden Valley" site, en-route to Mount Sharp, by NASA's Curiosity rover. A variety of mudstone strata in the area indicate a lakebed deposit, with river- and stream-related deposits nearby. Decoding the history of how these sedimentary rocks were formed, and during what period of time, was a key component in the confirming of the role of water and sedimentation in the formation of the floor of Gale Crater and Mount Sharp. This image was taken by the Mast Camera (Mastcam) on Curiosity on the 703rd Martian day, or sol, of the mission. An unannotated version can be viewed at PIA19476. Malin Space Science Systems, San Diego, built and operates Curiosity's Mastcam. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, Pasadena, built the rover and manages the project for NASA's Science Mission Directorate, Washington. More information about Curiosity is online at http://www.nasa.gov/msl and http://mars.jpl.nasa.gov/msl/.
Persichetti al San Diego Comic-Con nel 2018, mentre promuove Spider-Man - Un nuovo universoStatuetta dell'Oscar Oscar al miglior film d'animazione 2019
English: Bob Persichetti speaking at the 2018 San Diego Comic-Con International in San Diego, California.
Željeznice Herceg-Bosne su zadržale boje Jugoslavenskih željeznica. Natpis "Jugoslavenske željeznice" zamijenjen je natpisom "Željeznice Herceg-Bosne".
Sketch of original livery of 2141 series
Para Almeida, o retrato do Brasil no episódio se relaciona com o "caos social" do final do mandato de Fernando Henrique Cardoso (foto) como presidente.
Português: Fernando Henrique Cardoso, presidente do Brasil.
Släkten Zeppenfeldts vapensköld av genealogen och heraldikern Adolf Matthias Hildebrandt ur Genealogisches Handbuch bürgerlicher Familien Band 97 1889.
English: Zeppenfeldts cout of arms
Carte des densités de population (millésimée 2016) des communes de l'intercommunalité Vitré Communauté. Composition en communes au 1er janvier 2019[3].
Français : Carte des densités de population (millésimée 2016) des communes de l'intercommunalité Vitré Communauté, département d'Ille-et-Vilaine, France. Composition au 1er janvier 2019.
הכיתוב על האנדרטה בכפר זארצ'נאיה סלובודה אומר: "במקום זה ב-12 בפברואר 1942 הכובשים הגרמנים-פאשיסטים ירו למוות ב-1,805 תושבים", ללא ציון שמדובר ביהודים.
Русский: Надпись на памятнике евреям из гетто в Чашниках, убитых нацистами и коллаборационистами. Установлен в деревне Заречная Слобода (Чашникский район, Витебская область).
A member of the Black Watch fires a rifle grenade in 1917. In 2006, the Black Watch was reorganized into a battalion of the Royal Regiment of Scotland.
English: Black Watch firing rifle grenade in 1917
Laguna artificial como consecuencia del llenado de agua de un hueco tras la extracción de la turba, dentro de los planes de restauración de la turbera.
Laguna artificial como consecuencia del llenado de agua de un hueco después de haber sacado la turba.
A statue of Captain James Cook stands in Waimea, Kauaʻi commemorating his first contact with the Hawaiian islands at the town's harbor in January 1778.
Captain James Cook statue, Waimea, Kauai, Hawaii. According to the legend on its base, this statue is a replica of the original in Whitby, England, made by Sir John Tweed. Captain Cook's dates are 1728-1779.
Papa Leão XIII usando a “Tiara de Paris” (1888), doada pelos católicos da cidade homônima para comemorar o Jubileu de Ouro da sua ordenação sacerdotal.
English: Pope Leo XIII.
The rabbit on the left fell out of the nest and was at about 70 degrees Fahrenheit. The one on the right was in its nest at about 95 degrees Fahrenheit
English: The rabbit on the left fell out of the nest and was at about 70 degrees farenheit. The one on the right was in its nest at about 95 degrees farenheit
Adaptiivisen optiikan sovelluksessa ilmakehään suunnatuilla lasereilla luodaan keinotekoinen valonlähde ilmakehän aiheuttamien häiriöiden mittaamiseen.
The British cafe (such as this one in Islington, London, with a "breakfast served all day" sign) typically serves the full breakfast throughout the day
English: Alex Cafe, Islington Located on Liverpool Road, opposite the junction with Highbury Station Road. A traditional workman's cafe, affectionately known as a greasy spoon, offering hearty meals for the sort of prices that would barely buy a cup of coffee in trendier establishments. Even so, crusty bread, baguettes and jacket potatoes suggest that they have moved with the times.
Schrägschichtung und horizontale Schichtung in einer Sandsteinkuppe in Utah. Der Schrägschichtungswinkel von etwa 30° zeigt die Ablagerung in Dünen an.
English: Sandstone dome in the Dry Fork of en:Coyote Gulch, part of the en:Canyons of the Escalante. This dome exhibits crossbedding and layering, remnants of its origins as sand dunes.
Bir su şişesi. Dünya çapında, 2017'de 480 milyar plastik içme şişesi satıldı ve PET şişe geri dönüşümü ile  bunların yarısından azı geri dönüştürüldü).
Español: PET (Tereftalato de polietileno) English: PET (Polyethylene terephthalate)
Come Over Here! (1915) by Lilian Cheviot, showing the approximate differences in sizes between the Scottish Terrier, the Welsh Terrier and the Bulldog.
"Come over here!" (b. 1915) - World War I. A British bulldog, a Highland terrier and a Welsh terrier. The three dogs are standing on a French clifftop looking towards the English coast.
Si Haring Leopold III na kinuhanan noong 1934, ay pumili na manatili sa Belhika bilang bilanggo kaysa sundin ang kanyang pamahalaan sa pagkakadistiyero
Nederlands: Koning Leopold III achter zijn bureau in het paleis te Laken 1934
تھیوڈور ڈی برے کیریبیائی دیسی ساختہ اسپا نیورڈز کے خلاف لڑائی کا مظاہرہ ، جس میں نربہت کا مظاہرہ اور ایک ہسپانوی کو پگھلا ہوا سونا نگلنے پر مجبور کرنا۔
Long-time Republican Senator Arlen Specter switched to the Democratic Party, in part because he believed he was unlikely to win the Republican primary.
Senator Arlen Specter while he was being interviewed by Margot Adler for an episode of en:Justice Talking on Presidential Signing statements
Swedish X2000 train buffet cars are mostly self-service. Customers pick their food from a shelf, pay for it, and heat it themselves in a microwave oven
English: A dining car in a Swedish en:X 2000 train from en:Stockholm to en:Malmö.
C'era una volta un principe che cavalcava alla luce della luna; illustrazione dello svedese John Bauer del 1914 per la fiaba L'anello di Helena Nyblom.
Image en deux dimensions représentant une courbe dans un espace de trois dimensions. Cette courbe est une variété de dimension 1, aussi dite 1-variété.
The day's breakaway approaching the town of Benevento, in the opening 10 km (6.2 mi) of the stage. Brian Bulgaç leads Pierre Cazaux and Martijn Keizer.
Giro_d'italia_14_05_12_01: Brian Bulgaç, Pierre Cazaux and Martijn Keizer.
Вериги. Москва, XVII век. Предположительно, венец, верижный крест и пояс принадлежали святому Иоанну Блаженному. Экспозиция в соборе Василия Блаженного
Вериги. Москва, 17 век. Железо, ковка, гравировка. Предположительно венец, верижный крест и пояс принадлежали св. Иоанну Блаженному по прозвищу "Большой Колпак".
The huge new XB-36 alongside the first superbomber, the Boeing B-29 Superfortress: The wings of the 'Peacemaker' were 7 feet (2.1 m) thick at the root.
English: Arrival of the first B-36A at Carswell AFB, Ft. Worth, Texas, June 1948
The effigy of Shakespeare's Stratford monument as it was portrayed in 1656, as it appears today, and as it was portrayed in 1748 before the restoration
English: This is a composite image of Shakespeare's funerary monument and its depiction published in William Dugdale's Antiquities of Warwickshire (1656) and in Rev. George Arbuthnot’s A guide to the collegiate church of Stratford-on-Avon (4th ed., 1904) and a painting made in 1748 by John Hall.
Trekkruter for seks flyttfuglar. Etter Ian Newton.[1][2]
        ██ Steinskvett ██ Raudnebbterne ██ Amurfalk   ██ Smalnebblire ██ Brushane ██ Prærievåk