Nkhuku za nkhuku (Cereopsis novaehollandiae) ndi za banja la bakha, lamulo la Anseriformes.
Ofufuza aku Europe adawona tsekwe za nkhuku pachilumba cha Cape. Ichi ndi tsekwe chodabwitsa ndi mawonekedwe achilendo. Zikuwoneka ngati tsekwe weniweni, tsekwe ndi m'chimake nthawi yomweyo. Zotsalira za atsekwe osathawa amtundu wa Cnemiornis, banja laling'ono la Cereopsinae, adapezeka pachilumba cha New Zealand. Mwachiwonekere, awa anali makolo a tsekwe amakono a nkhuku. Chifukwa chake, mtunduwu poyamba unkatchedwa "New Zealand - Cape Barren goose" ("Cereopsis" novaezeelandiae). Vutoli lidakonzedwa ndipo anthu ku Cape Barren ku Western Australia adatchulidwa kuti subspecies, Cereopsis novaehollandiae grisea B, yotchedwa gulu la zisumbu zotchedwa Recherche archipelago.
Zizindikiro zakunja kwa tsekwe za nkhuku
Goose wa nkhuku amakhala ndi thupi pafupifupi 100 cm.
Goose wa nkhuku ali ndi nthenga wonyezimira wonyezimira wokhala ndi zilembo zakuda pafupi ndi nsonga za nthenga ndi mchira. Kapu yokha pamutu pakatipo ndiyopepuka, pafupifupi yoyera. Nkhuku za nkhuku ndi mbalame yayikulu komanso yolimba yolemera kuyambira 3.18 - 5.0 kg. Sizingasokonezedwe ndi mbalame ina iliyonse yomwe imapezeka ku South Australia chifukwa cha thupi lake lalikulu komanso mapiko otambalala. Kutseka nthenga za mapiko ndi mikwingwirima yakuda. Mapeto a nthenga zachiwiri, zoyambirira ndi mchira wakuda.
Mlomo ndi wamfupi, wakuda, pafupifupi wobisika kwathunthu ndi kamwa ka mawu obiriwira achikasu.
Miyendo yofiira mthunzi woterera, mdima pansi pake. Mbali zina za Tarso ndi zala zakuda zakuda. Iris ndi ofiira ofiira. Mbalame zonse zazing'ono zimakhala zofananira ndi akulu akulu, komabe, mawanga omwe ali pamapiko amaonekera bwino. Mtundu wa maulawo ndi wopepuka komanso wopepuka. Miyendo ndi mapazi zimakhala zobiriwira kapena zakuda poyamba, kenako zimakhala ndi mthunzi wofanana ndi mbalame zazikulu. Iris ndiyosiyana pang'ono ndipo ndi bulauni wonyezimira.
Nkhuku za nkhuku zimafalikira
Nkhuku zazing'ono ndi mbalame zazikulu zomwe zimapezeka ku South Australia. Mitunduyi imapezeka kudera la Australia, komwe imapanga madera anayi akuluakulu. Chaka chonse, amasamukira kuzilumba zazikulu komanso mkati. Kusamuka koteroko kumachitika makamaka ndi atsekwe achichepere, omwe samakhala. Mbalame zazikulu zimakonda kukhala m'malo oswana.
Ulendo wautali wodutsa pagombe lakumwera kwa Australia kupita kuzilumba za Rechsch ku Western Australia, Chilumba cha Kangaroo ndi Sir Joseph Banks Island, zilumba za Victorian Coastal Islands mozungulira Wilsons Promontory Park, ndi zilumba za Bass Strait kuphatikizapo Hogan, Kent, Curtis ndi Furneaux. Atsekwe ochepa amapezeka ku Cape Portland ku Tasmania. Mbalame zina zafikitsidwa ku Mary Island, zilumba zomwe zili kunyanja yakumwera chakum'mawa komanso kumpoto chakumadzulo kwa Tasmania.
Malo okhala tsekwe za nkhuku
Atsekwe a nkhuku amasankha malo m'mphepete mwa mtsinje nthawi yobereketsa, amakhala m'malo azilumba zazing'ono ndikudya m'mphepete mwa nyanja. Akamaliza kumanga mazira, amakhala m'malo am'mphepete mwa nyanja komanso m'madzi okhala ndi madzi abwinobwino m'malo amvula. Nthawi zambiri, atsekwe a nkhuku amakhala makamaka kuzilumba zazing'ono, mphepo komanso zopanda anthu, koma amakhala pachiwopsezo chimawonekera m'malo oyandikira alimi pakufunafuna chakudya nthawi yotentha. Kukhoza kwawo kumwa madzi amchere kapena amchere kumathandiza atsekwe ambiri kukhalabe pazilumba zakunja chaka chonse.
Makhalidwe a nkhuku tsekwe
Atsekwe a nkhuku amakonda kucheza, koma nthawi zambiri amakhala m'magulu ang'onoang'ono osachepera 300. Amapezeka pafupi ndi gombe, koma samasambira kawirikawiri ndipo samalowa m'madzi nthawi zonse, ngakhale atakhala pachiwopsezo. Mofanana ndi ma anatidae ambiri, atsekwe amataya mwayi wawo wouluka pakasungunuka nthenga za m'mapiko ndi mchira zikagwa. Mitundu ya atsekweyi, ikawopseza moyo, imabweretsa phokoso lalikulu lomwe limawopseza adani. Ndege za atsekwe zimauluka mwamphamvu, zokhala ndi mapiko othamanga mwachangu, koma zolimba pang'ono. Nthawi zambiri zimauluka m'magulu.
Kuswana tsekwe nkhuku
Nthawi yobereketsa atsekwe ndi yayitali kwambiri ndipo imatenga kuyambira Epulo mpaka Seputembara. Magulu okhazikika amapangidwa. Ndani amasunga ubalewo moyo wonse. Mbalame zimakhazikika mumtsinje mumtunda ndipo zimagawidwa mofanana, kuteteza malo osankhidwa mwakhama. Gulu lililonse limasankha dera lawo nthawi yophukira, limakonza chisa ndipo mwaphokoso komanso mosamala limathamangitsa atsekwe ena kuchokera pamenepo. Zisa zimamangidwa pansi kapena kupitilira pang'ono, nthawi zina pazitsamba ndi mitengo yaying'ono.
Atsekwe amaikira mazira awo pa zisa zomwe zili pa malo okumbikakumbika (madyerero) kumalo odyetserako ziweto omwe amakhala.
Pali mazira pafupifupi asanu mu clutch. Makulitsidwe amatha pafupifupi mwezi. Anapiye a kamwana amakula ndikukula msanga m'nyengo yozizira, ndipo kumapeto kwa masika amatha kuwuluka. Kudyetsa anapiye kumatenga masiku 75. Atsekwe achichepere kenako amadzaza gulu la atsekwe osakhala zisa omwe adakhalanso m'nyengo yozizira pachilumba chomwe mbalame zimaswanirana.
Pofika kumayambiriro kwa chilimwe, gawo la chilumbacho lauma, ndipo chivundikiro chaudzu chimasanduka chikasu ndipo sichimakula. Ngakhale kulibe chakudya chokwanira cha mbalame kuti chikhalebe nthawi yotentha, atsekwe a nkhuku amakonda kuchoka kuzilumba zazing'onozi ndikupita kuzilumba zazikulu pafupi ndi kumtunda, komwe mbalamezi zimadya msipu wabwino. Mvula yophukira ikayamba, gulu la atsekwe a nkhuku amabwerera kuzilumba zakomweko kukaswana.
Nkhuku tsekwe zakudya
Zakudya za atsekwe a nkhuku m'madzi. Mbalamezi zimangodya zakudya zamasamba zokha komanso zimadya msipu. Atsekwe a nkhuku amakhala nthawi yambiri m'mapiri kuti kwanuko, amabweretsa mavuto ena kwa oweta ziweto ndipo amawerengedwa ngati tizirombo taulimi. Atsekwewa amadyera makamaka pazilumba zokhala ndi ma hummock zokutidwa ndi maudzu osiyanasiyana komanso zokoma. Amadya balere ndi clover m'malo odyetserako ziweto.
Kuteteza nkhuku tsekwe
Nkhukhu siziwopsezedwa ndi manambala ake. Pazifukwa izi, mtundu uwu si mbalame yosowa. Komabe, panali nthawi kumalo okhala mitundu ya tsekwe za nkhuku pamene kuchuluka kwa mbalame kunachepa kwambiri kotero kuti akatswiri azamoyo amaopa kuti atsekwe atsala pang'ono kutha. Njira zomwe zatetezedwa ndikuchulukitsa chiwerengerocho zidapereka zotsatira zabwino ndikubweretsa kuchuluka kwa mbalame pamlingo wotetezeka kuti pakhale mitundu. Chifukwa chake, tsekwe za nkhuku zidapewa ngozi yakutha. Komabe, mtundu uwu umakhalabe umodzi mwa atsekwe osowa kwambiri padziko lapansi, omwe sinafalikire kwambiri.
