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Possono venire regolarmente catturati anche piccoli vertebrati, comprese [[Lacertilia|lucertole]], [[Chamaeleonidae|camaleonti]], piccoli [[Serpentes|serpenti]], piccoli [[Mammalia|mammiferi]] (soprattutto [[Rodentia|roditori]]), uova di uccelli e nidiacei. Di tanto in tanto si nutrono di [[Carogna|carogne]], specialmente di quelle dei grandi animali uccisi dagli incendi nel ''veld''. Anche le sostanze di origine vegetale costituiscono una parte importante della dieta. Le [[Erba|erbe]] e i loro [[Seme|semi]] sono forse le sostanze vegetali mangiate più di frequente, ma questi animali non disdegnano [[Seme|semi]], [[Bacca|bacche]], [[Radice (botanica)|radici]], [[Bulbo|bulbi]], [[Fiore|fiori]], [[Cucumis|meloni]] selvatici e [[Foglia|foglie]] verdi. Questa otarda è particolarmente attratta dalla resina solidificata di ''[[Acacia]]''. A causa di questa particolarità, la specie è nota in lingua afrikaans come ''Gompou'', vale a dire «pavone della gomma»<ref name=Ginn/>. Quando ha accesso all'acqua beve regolarmente, ma può essere trovata anche a 40 km di distanza dal punto d'acqua più vicino<ref name=Ginn/>. Stranamente, quando beve, aspira l'acqua invece di raccoglierla con il becco<ref name=Harrison/>.
===Breeding Riproduzione ===
[[File:Kori bustard bird - Ngorongoro-2.jpg|thumb|right|MaleMaschio koridi bustard (''A. k. struthiunculus'') displaying in tenuta nuziale nell'[[Area di conservazione di Ngorongoro|area Conservationdi Areaconservazione dello Ngorongoro]].]]
[[File:Ardeotis kori MWNH 0044.JPG|thumb|Egg,Uovo Collection(collezione [[Museumdel museo di Wiesbaden]]).]]
KoriLa bustards'stagione breedingdi seasonriproduzione isdell'otarda differentkori betweenvaria thetra twole subspeciesdue sottospecie. In generallinea di massima, possiamo affermare che ''A. k. struthiunculus'' breedsnidifica fromda Decemberdicembre toad Augustagosto ande ''A. k. kori'' breedsda fromsettembre Septembera to February.febbraio<ref name= Harrison>Harrison, J. Harrison, D. Allan, L. Underhill, M. Herremans, A. Tree, V. Parker, e C. Brown. (1997). ''The atlas of southern African birds. Vol. 1: Non-passerines''. Johannesburg: BirdLife South Africa.</ref>. BreedingLa isriproduzione closelyè tiedstrettamente withcorrelata rainfall,alle andprecipitazioni ine droughtnegli years,anni maydi besiccità greatlypuò reducedridursi ornotevolmente noto evennon occur.avere luogo affatto<ref name= Osborne>Osborne, T. andOsborne Osborne,e L. Osborne. ''Ecology of the Kori bustard in Namibia''. Annual Report of the Ministry of Environment and Tourism Permit Office, Namibia. Feb. 1998.</ref>.
KoriI bustardsmaschi engagedi inotarda kori occupano caratteristiche arene nuziali denominate ''[[lekLek mating(biologia)|lek]]''. AllTutte le specie di otarda bustardshanno haveabitudini [[polygynousPoliginia|poliginiche]] breedinge habits,i inmaschi whichcercano onedi maleattirare, displayscon tole attractloro esibizioni, severalpiù femalesfemmine, andcon matesle withquali themsi all.accoppieranno<ref name= Hallager>Hallager, S., Hallager e J. Boylan. (2004). ''Kori Bustard Species Survival Plan Husbandry Manual''.</ref>. MalesI displaymaschi atsi regularlyesibiscono usedin sites,siti eachregolarmente maleutilizzati utilizinge severalciascuno disperseddi leksessi orutilizza displaydiversi areas.''lek'' Thesesparsi displaysqua usuallye takelà. placeLe inparate thenuziali morningsdi andsolito evenings.hanno Theluogo courtshipal displaysmattino ofe thealla sera. malesEsse aresono impressiveimpressionanti anded elaborate, successfullye advertisingservono theirad presenceavvisare todella potentialloro mates.presenza potenziali compagne<ref name= Tarboton/>. The males hold their heads backwards, with cheeks bulging, the crest is held erect, the bill open and they inflate their gular pouches, forming a white throat "balloon". During this display the oesophagus inflates to as much as four times its normal size and resembles a balloon. They also puff out their frontal neck feathers which are splayed upwards showing their white underside. The white may be visible up to {{convert|1|km|mi|abbr=on}} away during display.<ref name= Hallager/> Their wings are drooped and their tails are raised upwards and forwards onto their backs like a [[turkey (bird)|turkey]], the retrices being held vertically and their undertail coverts fluffed out. They enhance their performance with an exaggerated bouncing gait. When displaying they stride about with their necks puffed out, their tail fanned and their wings planed and pointed downward.<ref name= Steyn/> They also emit a low-pitched booming noise when the neck is at maximum inflation and snap their bills open and shut. Several males dispersed over a wide area gather to display but usually one is dominant and the others do not display in his presence and move away. The displaying males are visited by the females who presumably select the male with the most impressive display.<ref>Dennis N., Knight M., Joyce P. 1997. ''The Kalahari: Survival in a Thirstland Wilderness''. Struik Publishers (Pty) Ltd., Cape Town.</ref> Occasionally fights between males can be serious during the mating season when display areas are being contested, with the two competitors smashing into each other's bodies and stabbing each other with their bills. They may stand chest-to-chest, tails erect, bills locked and 'push' one another for up to 30 minutes.<ref name= Maclean/>
Following the display, the copulation begins with the female lying down next to the dominant displaying male. He stands over her for 5–10 minutes, stepping from side to side and pecking her head in a slow, deliberate fashion, tail and crest feathers raised. She recoils at each peck. He then lowers himself onto his tarsi and continues pecking her until he shuffles forward and mounts with wings spread. Copulation lasts seconds after which both stand apart and ruffle their plumage. The female then sometimes barks and the male continues with his display.<ref name= Tarboton/><ref name= NatZoo/>
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