Ama-parrots aseNew Zealand ama-kea anomancoko!
Iqembu lososayensi abavela eNew Zealand nase-Australia baye bafakazela ukuthi i-kea upholi isebenzisa i-trill ethile, efana nokuhleka komuntu. Ngemva kochungechunge lokuhlola, izazi zezinyoni zathola ukuthi ukudlala amarekhodi “okuhleka kwezinyoni” kuthinta ukuziphatha kopholi baseNew Zealand.
Ngokwe-athikili ye-Current Biology, ukuhlola okwenziwa ababhali ngemihlambi ye-kea yasendle kwasiza ekufinyeleleni kulesi siphetho. Ososayensi baqophe izinhlobo ezimbalwa zemisindo eyenziwa opholi ngezikhathi ezahlukene. Ukurekhoda i-trill phakathi nemidlalo esebenzayo kwathinta umhlambi we-kea ngendlela ehambisanayo: izinyoni zaqala ukuhlukumeza nokulwa ngendlela yokudlala, ngaphandle kokubonisa ulaka lwangempela.
Njengokuhleka komuntu, i-game trill ye-nestors iyathathelana futhi ithinta kakhulu isimo sokuziphatha kwephekhi.
Izinhlobo ezi-5 zemisindo zazidlalwa kumapholi, kodwa izinyoni zasabela kuphela “ekuhlekeni” ngemidlalo. Kuyathakazelisa ukuthi i-kea engazange isabele ekuqaleni ayizange ixhumane ne-kea esivele idlala, kodwa yaqala ukuzikhohlisa izinyoni zingahlanganyeli ebumnandini, noma isebenzisa izinto zalokhu, noma yaqala ukwenza imigilingwane ye-acrobatic emoyeni. Umsindo othile uvuse ukudlala phakathi kwezidleke, kodwa awuzange usebenze njengesimemo somdlalo, kodwa ukhonjiswe kuphela njengomzwelo enyoni ngayinye.
Ukurekhoda kube nomthelela esimweni somzwelo, kodwa hhayi isimo sengqondo, ngoba kuhlala isikhathi eside futhi kuzinzile.
Ngemva kokudlala i-trill imizuzu emi-5, i-kea yaqala ukuzikhohlisa futhi yaqhubeka eminye imizuzu emi-5 ngaphandle kokuzwa i-trill. Sekukonke, ukuhlolwa kuthathe imizuzu eyi-15: imizuzu emi-5 ngaphambi kokuqala "kokuhleka" (lapho izinyoni bezishiywe zodwa), imizuzu emi-5 yomsindo (i-kea yaqala ukukhohlisa) kanye nemizuzu emi-5 ngemuva kokuhlolwa, lapho athula amaphara.
Emvelweni, ukudlala ngothando phakathi kwezinyoni nezilwane zobulili obuhlukile kubonisa ukuqala kokuqomisana nokuqala kwenkathi yokuzalanisa. Endabeni yopholi baseNew Zealand, izinto zihlukile. Ngemva kokuzwa ukurekhodwa "kokuhleka", kokubili abesilisa nabesifazane beminyaka ehlukene babonise umsebenzi emidlalweni yamahlaya.
Ukuhleka kwama-parrots aseNew Zealand kubonakala njengokufana nokuhleka kwabantu nezinye izinhlobo. Isibonelo, amagundane nawo anomsindo ongabizwa ngokuthi uhleko. Kodwa ukuhlolwa kokuqinisekisa lokhu kucatshangelwa kwakungekhona ubuntu kunasesimo se-kea. Amagundane nawo aqala ukudlala nokuzikhohlisa lapho ezwa “uhleko”.
Ngesikhathi sokuhlolwa, izilwane zaphuphuthekiswa noma zangezwa. Amagundane ayisithulu awazange asabele emsindweni owenziwe kabusha futhi awazange abonise ukudlala, kuyilapho ukuziphatha kwamagundane angaboni kwashintsha kakhulu: aqala ukudlala futhi aqala ukubonisa isimo sengqondo sokujabula ezihlotsheni zabo.
Ikhono lama-parrots ukulingisa ukuhleka komuntu akufanele kudidaniswe ne-trill "yokuhleka". Ama-parrots ayizinyoni ezilingisa ngempumelelo zonke izinhlobo zemisindo, kodwa ukuzikopisha akuthwali ingxenye yomzwelo, lapho i-trill iwukubonakaliswa komzwelo wenyoni ngokwayo.
