Lawan Kawan (Makaɗan Cygnus) - ofaya daga cikin manyan nau'ikan swans: tsawon jikinta shine 150-180 cm kuma nauyinta shine 7300-1250 g. launin launinta mai tsabta fari ne, amma ana iya rarrabe shi cikin nau'ikan nau'ikan godiya ga beak mai baƙar fata. Kamar sauran swans, mace da namiji na ƙaho suna da launi iri ɗaya, amma mata sun ɗan ƙanƙane.
Eteran ƙahon ɓarke na zaune a cikin fadama tare da ƙaramin tafkuna a cikin yankin taiga, amma, a cikin hunturu, ana kiyaye waɗansu yawan swan a bakin tekun. Eterarar ƙaho tana ciyar da rayuwarsa gabaɗaya a cikin ruwa, amma yana iya ɗaukar abin daga ciki sai kawai farawa. Jirginsa yana da natsuwa, amma yana da sauri. Wani nau'in ƙahon ƙaho a Alaska da yammacin Kanada, yayin da yake yin ruwan sanyi a gabar tekun Kudancin Alaska da arewacin Amurka.
Abinci mai gina jiki
Kamar sauran nau'ikan swans, trumpeter Swan ciyar da kusan keɓaɓɓen abinci akan tsire-tsire: ganye da kore mai tushe na tsire-tsire masu ruwa na ruwa (lilin na ruwa, algae), tsaba, rhizomes. A lokacin hunturu, abincin da aka fi so don ƙaho shine dankali, suna cinye su a gonar gona. Swans da wasu dabbobin ruwa na cikin ruwa suna cin shi, haka kuma wasu lokuta amphibians da ƙananan kifi. A cikin makonni na farko na rayuwa, aladun swans suna ciyar da yawancin hanyoyin ruwa: kwari da larvae, mollusks, da tsutsotsi. Mai ƙahon ƙaho kusan ko yaushe yana neman abinci a cikin ruwa, amma ba ya nutse ba, amma kawai yana nutsar da kai da wuya cikin ruwa. Dogon wuya yana ba shi damar samun tsire-tsire daga zurfin zurfi, kuma idan har tsawonsa bai isa ba, mahaɗa ke sanya jikin a tsaye (gants).
Halayyar zamantakewa da sake haifarwa
Buƙiyar ƙahon ɓuya a cikin rabe-raben rake tare da kurma, yawanci manyan tafkuna ne tare da tekuna da ke gefen ruwa. Wuraren suna da nau'i-nau'i akai-akai, wani lokacin kuma zasu kasance cikin rayuwarsu, kuma sabon abokin yana bayyana mafi yawan lokuta kawai idan mutuwar tsohuwar. Nau'i-nau'i na swans yanki ne kuma yana amsawa da mutunci sosai ga bayyanar kowane baƙon a ƙasarsu. Ginin mai ƙahon ƙaho shine tarin moss, ciyawa ko shudi kuma yawanci yana cikin ruwa mara zurfi ko a tsibiri, a cikin wani yanki mai kariya na tafkin, yawanci akan gidajen muskrat. A cikin ɓoye na ƙwai 4-8, shiryawa yana kasancewa kwanaki 33-37, akasarinsu matan ne ke yin incubates, namiji a lokaci guda yana kiyaye yankin. Kajin Swan yana rufe da launin toka, wanda ke kare su daga danshi. Ba kamar tsuntsayen manya ba, galibi suna narkewa yayin ciyarwa. Wani lokacin swans kan hau kan ɗayan iyayen kuma suyi tafiya ta wannan hanyar. Suna haɓaka sannu a hankali kuma suna jingina kawai bayan kwanaki 84-120. Duk wannan lokacin, matasa masu busa ƙaho suna tare da tsuntsayen manya, tare da su suna tashi don hunturu, sannan kuma su koma wuraren da suke zaune. Dangantaka tsakanin iyaye da kajin na iya dorewa har zuwa lokacin kiwo na gaba. Trumpeta ya isa balaga ne kawai a cikin shekaru 3-4.
Bayyanar ƙaho mai ƙaho
Shuwan busa-ƙahon yana da girma - tsayin jikin mutum yakai mita 1.4-1.65, amma wasu maza sun yi girma zuwa mita 1.8.
Yawan nauyin manya ya bambanta daga kilo 7 zuwa 13.5. Maza, matsakaita, nauyin kilo 11.8, kuma mace tayi nauyi - kilo 9.4. Tsawon fikafikan shi ne mita 1.8-2.5. Babbar wacce aka yiwa rijista ta sata a hukumance tana da tsawon tsayin mita 1.83, nauyinta kilo 17.2, kuma fikafikaninta yakai mita 3.1.
Umwaya cikin manya fararen fata ne. Gefen wakilan nau'in suna da siffa mai kaifin kyau, babba kuma baki ɗaya, a wasu yanayi, a kusa da ginin beak na iya zama ruwan hoda. Kafafu suna launin ruwan hoda, amma a wasu alamu suna launin toka-baki ko baƙi. Yara matasa a ƙarƙashin shekara 1 suna da launin toka.
Halin Swan da abinci mai gina jiki
Wadannan swans suna da yankuna na kansu, wanda ba a yarda baƙi ba. A lokacin rani, manya molt. A yayin yawon tsuntsaye, nan da nan sai tsuntsaye suka yi rashin nasara, saboda haka ba za su iya tashiwa ba. Mata suna molt wata daya a baya fiye da maza.
Trumpeter swans yana ciyar da ciyayi mai ruwa - mai tushe da ganyen karkashin ruwa da tsirrai. Daga kasan wuraren tafki, tsuntsayen sukan fitar da tsiro da asalinsu. A cikin hunturu, swans na wannan nau'in suna cin hatsi a cikin filaye ko ciyawa.
Tsuntsaye suna ciyar da su da rana da dare. Baya ga abincin shuka, kifi, crustaceans da caviar suna cikin abincin. Wannan abincin yana kunshe da furotin da yawa wanda swans yake buƙata.
Sake buguwa da tsawon rai
Trumpeter swans ya kirkiro ma'aurata don rayuwa. Gida an gina shi a kan karamin tsibiri ko ciyawar iyo. Za a iya amfani da gida ɗaya na shekaru da yawa.
Matar ta sanya ƙwai a watan Afrilu-Mayu. Mafi sau da yawa, yana dauke da ƙwai 4-6, amma za'a iya samun 3 ko ƙari mai yawa - 12. ƙwai na ƙaho suna da yawa, suna awo game da gram 320. Lokacin shiryawa yana kwana 37. Chingyawar ƙyashi ana yin ta ne ta hanyar mace.
Kyankyasai na iya yin iyo a rana ta 2 na rayuwa. Saurin girma yana farawa yana da shekaru 4.
A cikin daji, rayuwar wadannan kyawawan tsuntsaye ita ce shekaru 25-28, kuma a cikin kawancen ƙaho kuma ke rayuwa har zuwa shekaru 33-35.
Ina yake zama
Wurin haifuwar ƙaho mai ƙaho ne Arewacin Amirka. Tsuntsayen suna zaune ne musamman a arewa maso yamma da kuma tsakiyar nahiyar. A kudu, kewayon ya kai har zuwa Texas da Kudancin California. Isan ƙaramin yanki na mutane suna wakilta a Alaska. Babban mazaunin asali na nau'ikan sune tundra da daji-tundra. Trumpeter ya fi son a shimfida bakin tekun da lalura, a hankali yake gudan koguna.
Alamun waje
Babbar ƙahon ɓauren ƙaho shine mafi girma daga ruwa mai zaman ruwa. Tsawon jikin mutum yayi girma daga 140 zuwa 165 cm.Kojin da yafi kowa girma da aka sani da ilimin kimiyya shine 180 cm tsawo .. nauyin tsuntsayen shine daga kilogram 7 zuwa 13.5. Idan dabbar ta yada kyawawan fukafukan ta kyawawa zuwa ga bangarorin, tabbas zata zama kamar giantaccen gaske: fikafikan su ya kai mita 2.5. Zumuntar tsofaffin fararen-dusar kankara ne, kuma kananan tsuntsayen ana zanen su a sautunan launin toka-launin ruwan kasa. Siffar halayyar ƙaho ta ƙaho ita ce ƙaramar baki mai ƙarfi. Kawai a cikin wasu mutane a cikin yawan jama'a na iya ruwan hoda mai ruwan hoda mai shuɗi ciki tare da baki. Gajeru dangane da girman girman kafa - baki. Namiji da mace na waje basu da bambanci. A cikin yanayin rayuwarsu da bayyanar su, waɗannan tsuntsayen suna da alaƙa iri ɗaya da whowper Swan.
Rayuwa
Eterwan ƙaho ya samu sunan sa saboda ƙararrun sautikan da aka yi yayin sadarwa. Suna iya sauraresu tsawon nesa kuma suna taimaka wa tsuntsaye su ci gaba da hulɗa da juna. Thearfin daskararru da yawan wadatarwa suna sa swans ya zama tsayayya da ƙarancin zafi. Suna yin molt sau ɗaya a shekara.
Kimanin wata guda suka rasa ikon tashi. Swans suna ciyar da ruwa: suna nutsewa, suna ɗaukar algae da sauran tsirrai masu ruwa daga zurfa. Zasu iya cin mollusks da ƙananan crustaceans. Tsarin tsuntsaye mai tashi sama mai siffar nau'in V-ቅርፅ.
Kamar kowane swans, wannan kallon abu ɗaya ne. Nau'i koyaushe suna yin nau'i biyu a shekara ta biyu ko ta uku kuma suna amfani da wannan wurin don rayuwar ɗan adam shekaru da yawa. Mace na iya sa ƙwai 3 zuwa 12, wanda ke inganta kwanaki 32-37. Duk da cewa mahaifan biyu suna kulawa da zuriya, mahaifiyar ce kawai ta sanya mashin din. Kwana biyu bayan haihuwar kajin sun ci gaba da tafiya ta farko mai zaman kanta, ba shakka, a karkashin kulawa ta dattawa. A kusan mako biyu da haihuwa, sun sami damar cin abinci su ci da kansu. Sun sanya kayan da suka saba tun yana shekara uku zuwa hudu.
Tsuntsaye suna da abokan gaba da yawa waɗanda ke farauta ga manya da ƙwai da kajin. Daga cikin su - Wolverine, baribal, wolf wolf, otter, mink, gaggafa da kuma mudu da yawa.
A cikin al'adun mutane da yawa na duniya, Swan ɗin alama ce ta dangantakar soyayya, ƙauna da aminci. Waɗannan tsuntsaye suna ƙawata riguna na makamai da tutoci. Wani dangi na kusa da ƙaho mai ƙaho ƙaho shine alamar ƙasar ta Finland.
A cikin Littafin Jan
A yau, ƙaho na ƙaho yana a cikin jinsin da ke da haɗari mafi ƙaranci, akwai karuwar dabi'a mai ɗorewa a yawan jama'a. Koyaya, a cikin karni na XIX. Busa ƙahon ƙaho wani abu ne na farauta, kuma ana farautar tsuntsayen fuka-fukan. Kari akan haka, matasa suna da matukar damuwa ga gurbacewar abubuwa ta hanyar gubar dalma. Sabili da haka, a farkon karni na XX. jinsin kusan gaba daya ya ɓace daga Amurka kuma ya kasance kawai a Kanada da Alaska. A cikin 1933, wakilai 66 ne kawai na jinsunan suka rayu a Amurka ta Amurka. Na dogon lokaci, ƙoƙarin dawo da ƙahowar ƙaho zuwa yankin da suke zaune bai yi nasara ba. Koyaya, masana kimiyya sun sami nasarar cimma burin su. Tun shekara ta 1982, ana ta cigaba da aikin kiyayewa a Zoo na Toronto. Don wannan, ana amfani da qwai da aka tattara cikin daji. A cikin shekarun da suka gabata, kimanin tsuntsayen da aka kwashe kusan guda 180 sun koma mazauninsu na asali. Gabaɗaya, a cikin shekaru 30 da suka gabata, yawan jama'a ya karu da kusan sau 400. A yau, kusan babu abin da ke barazanar tsuntsaye.
Duba bayanin
Trumpeter shine ɗayan mafi girma na ruwa. Namiji babba na iya yin kilogram goma sha biyu, mace tayi kankanta kuma nauyinsu ya wuce kilo tara. Matsakaicin tsayin jikin tsuntsu ya kasance daga 140 zuwa 170 cm Musamman manyan wakilai na iya kaiwa tsayin sama da cm 180. Tsuntsu kusan 200-230 cm.
Bayyanar namiji da ta mace suna kama sosai. Rarraban mutane dabam dabam na iya zama girman su. Trumpeter swans suna da kyakkyawan farin dusar kankara. Gashin dabbar gashin jikinta yana da girma sosai kuma tana lullube da gashin fuka-fukai, suna bawa tsuntsaye damar jure yanayin zafi. Tsuntsayen matasa a ƙarƙashin shekara uku suna da duhu mai duhu: launin toka-launin ruwan kasa, launin ruwan kasa-launin toka, launin toka mai duhu. Wsudodin sawayen swak da baki - baki. An bambanta gangar jikin ta hanyar magana da kuma zurfin kirji.
Tsuntsaye suna bin sunansu ga tsarin musamman na trachea da maƙogwaro, tare da taimakon abin da suke yin ƙasa, mai ƙarfi da sauti mai ƙarfi, mai kama da sautin ƙaho.
Sau da yawa, ana iya jin sautin muryar ƙaho ko da nisan mil da yawa.
Kasa kunne ga muryar ƙaho
Amma karuwa da yawan bugun tururuwa na hana shi yawaitar karuwa, tunda wadannan wakilan dangi suna gasa da juna sosai. Amma yana da mahimmanci a san cewa masu yiwuwar ci gaban jama'a sun yi yawa. A yau, kusan 19,000 na waɗannan tsuntsaye suna zaune a Arewacin Amurka.
Idan an sami kuskure, a zabi wani ɗan rubutu sai a danna Ctrl + Shigar.
Range da mazauni
Tun daga shekarar 1968, aka maimaita shi a cikin 1975, sannan aka aiwatar a shekaru 5, nazarce-nazarce-nazarce na karshe na ƙawancen ƙawancen da aka yi a shekara ta 2015. Nazarin ya ƙiyasta ƙahon swan a cikin lambobi da haɓakawa a kan gaba ɗayan biyun na mutanen Arewacin Amurka masu daraja. Pacific Coast (PCP), Rocky Mountains (RMP) da kuma na cikin gida (IP) yawan jama'a (duba adadi) Daga 1968 zuwa 2010, yawan jama'a ya karu daga 3,722 zuwa kusan tsuntsaye 46,225, saboda yawan sake gabatarwa zuwa tarihinta kewayon esque.
Gidansu na kiwo sune manyan tafkuna masu zurfin ruwa, tafkuna na kwari, manyan bakin ruwa da manyan rafuffukan koguna da fadama a arewa maso yamma da tsakiyar Arewacin Amurka, tare da yawancin adadin kiwo a Alaska. Sun fi son wuraren girke-girke tare da isasshen sarari a gare su da isasshen ruwa a gare su don cirewa, kazalika da wadataccen abinci, ruwa mara-ruwa, ruwan da ba a gurɓata ba, kuma kaɗan ne ko kuma rashin ɗan adam. Yawan halitta na waɗannan swans suna ƙaura zuwa kuma daga tekun Pacific da wasu sassan Amurka, suna tashi a cikin garken da ke da fasalin V. Yawancin 'yanci ba mafi yawan ƙaura ba ne.
A lokacin sanyi, suna yin ƙaura zuwa yankin kudu na Kanada, jihohin arewa maso yammacin Amurka, musamman Red Rock Lakes na Montana, yankin Puget Sound na arewa maso yammacin Washington, sun lura har zuwa nesa kamar Pagosa Springs, Colorado Tarihi, sun yi ta canzawa har zuwa kudu kamar Texas da kudancin California. Bugu da kari, akwai wani samfurin a gidan kayan gargajiya na Comparative Zoology a Cambridge, wanda FB Armstrong yayi fim a shekarar 1909 a Matamorosa, Tamaulipas, Mexico. Tun daga 1992, ana samun ɓoye na ƙaho a cikin Arkansas kowane Nuwamba - Fabrairu a Magness Lake a waje da Heber Springs. A farkon shekarar 2017, wani karamin kara busa ƙaho ya sauka a cikin Kogin Faransa na Rediyon a Asheville, North Carolina, wanda ke nuna alamar gani ta farko a wannan ɓangaren jihar.
An kuma bullo da buɗaɗɗan ƙahonin ƙaura daga ƙaura a cikin sassan Oregon inda ba su fara faruwa ba. Saboda kyawawan dabi'un su, sun dace da ruwa mai amfani da ruwa don jawo hankalin masu lura da tsuntsu da sauran masu son dabbobi. Gabatar da nau'ikan yanki a cikin jihohin yammacin, alal misali, ta hanyar shirin Oregon Trumpeter Swan (OTSP), an kuma soki su, amma gabaɗaya, ƙawatawar abubuwan halitta ana ganin cewa suna da fifiko kan fifikon farkon kowane nau'in halitta.
Abincin
Wadannan tsuntsayen suna ciyar da abinci yayin iyo, wani lokacin kafin kammala karatu ko shiga tsakani don cin abincin da aka nutsar. Abincin yana kusan kusan tsire-tsire masu ruwa na ruwa. Suna cin abinci kamar ganye da ganyayyaki na nutsar da ciyawar ƙasa. Za su kuma yi tono a cikin ruwa karkashin ruwa substrates don cire Tushen da tubers. A cikin hunturu, suna iya cin ciyawa da ciyawa a cikin filaye. Yawancin lokaci sukan ci abinci da dare, kuma a lokacin da rana take. Aikin ciyarwa da nauyin tsuntsaye galibi ya kai matsakaicin bazara, yayin da suke shirin lokacin kiwo. Matasa suna ciyar da kwari, ƙananan kifi, ƙwai na kifi da ƙananan crustaceans, tare da tsire-tsire a matakin farko, suna samar da ƙarin furotin, canje-canje a cikin ciyayi bisa ga abinci a farkon watanni na farko.
Kiwo
Kamar sauran wayoyi, mai busa ƙahon sau da yawa yana yin aure don rayuwa, kuma iyayen biyu suna da hannu wajen haɓaka ƙuruciyarsu, amma da farko, mace tana ƙin ƙwai. Yawancin ma'aurata suna yin aure ne lokacin da swans dinsu yakai shekaru 5 zuwa 7, kodayake wasu ma'aurata basa yin tsari har sai sunkai kusan shekaru 20. “Saki”, kamar yadda kuka sani, tsakanin tsuntsaye, wanda a halin sa 'yan uwan za su kasance masu yin aure ne gaba daya, tare da abokan juna a rarrabe kiwo. Wani lokacin, idan mataimaki ya mutu, ƙahon ɓarna na ƙahon bazai sake haɗuwa ba har tsawon rayuwarsa. Yawancin mason suna faruwa ne a ƙarshen watan Afrilu da Mayu. Mace ta sanya ƙwai 3-12, daga 4 zuwa 6 kasancewa matsakaita a cikin yanki na kayan shuka a kan karamin tsibiri, a gidan wake ko muskrat, ko kuma tudun kan ruwa a kan shinge na ciyawar ƙasa. Za'a iya amfani da wannan wurin tsawon shekaru, kuma duka membobin biyu suna taimakawa wajen gina gida. Gida ya ƙunshi babban kwano, ganyayen ganyaye, ɗumbin daji, da tsire-tsire masu ruwa iri daban-daban kuma sun bambanta a diamita daga 1.2 zuwa 3.6 m (3.9 zuwa 11.8 ƙafa), ƙarshen bayan an maimaita shi. Qwai ne matsakaici na kimanin milimita 73 (inci 2.9), fadi 113.5 (inci 4.5) tsayi, kuma nauyinsa yakai kimanin 320 g (11.3 oces). Qwai, kusan mafi girma daga kowane tsuntsayen tsuntsu mai tashi, suna da rai a yau, kwatancen sun kusan 20% girma da girma fiye da na ɗakunan ajiyar Andes ( Vultur gryphus ), kai madaidaicin nauyi irin na manya, kuma ya zarce nauyi kamar na na KORI bustard ( Ardeotis KORI ) Lokacin shiryawa shine kwanaki 32 zuwa 37, yawancinsu mata ne ke sarrafa su, kodayake wani lokacin ma yakan zama namiji. Matasa na iya iyo ruwa na kwana biyu kuma, a matsayinka na mai mulki, sun sami damar ciyar da kansu bayan, a mafi kyau, cikin makonni biyu. Matashin shine yakai matakin 3 zuwa 4. A wancan lokacin nesting, ƙahonin ƙaho suna zama yanki kuma suna tursasawa wasu dabbobi, gami da dangi, waɗanda suke shiga yankin da suke zaune.
Manya suna yin ba'a a lokacin bazara lokacin da suka rasa gashin tsuntsaye na ɗan lokaci.Mace ta zama mara nauyi jim kaɗan bayan hatan samari ƙyanƙyau;
Mace-mace
A cikin zaman talala, mambobin wannan nau'in sun tsira zuwa shekaru 33, kuma a cikin daji, sun rayu akalla shekaru 24. Matasa na busa ƙaho suna iya samun asan kusan 40% na damar rayuwa saboda hanyoyi daban-daban na tashin hankali da halaka ta mutane, tsinkaya, zangon ambaliyar da yunwa. A wasu yankuna, kodayake, nasarar kiwo yafi girma, kuma wani lokacin duk Cygnets na iya isa ga balaga. Yawan mace-mace ba shi da ƙaranci, tare da raguwar yawanci yawanci kashi 80-100% a shekara idan mutane ba sa farautar su. Kwai swan trumpeter predators ya hada da hankaka gama gari ( Corvus corax ), raccoon gama gari (na kowa Procyon kuri'a ), Wolverine ( Gulo gulo ), Amurkawa baƙar fata ( Ursus atepsapis ), Karen launin ruwan kasa ( Ursus arctos ), coyote ( Canis latis ), ƙyarkeci ( Canza lupus ), zaki zakoki ( Puma Conkolor ), da otter na arewacin otter ( Lontra Kanada ) Matsayi mai kyau na iya bayar da kariya ta kariya daga akasarin maza masu cin naman dabbobi, musamman idan an tsibiri a tsibirin ko ciyayi a cikin ruwa mai zurfi. Yawancin mafarautan sun farauta ne da samari, kamar yadda za a sami abubuwan kunkuru Chelhydra Macijin ), California Gull ( Larus californicus ), babban gaggafa Bubo budurwa ), fox ( Vulpes vulpes ) da kuma American mink ( Mustela vison ) Manyan Hanyoyin Girma kuma, ba kasafai ake samun su ba, manyan mazajen kiwo za su iya hadasu ta hanyar gaggafa ta zinariya ( Aquila tsabtar ), lynx ( Lynx Rufus ), kuma tabbas kamar coyotes da Wolves Wolves. Lokacin da ƙwayayensu da tsoffinsu ke cikin haɗari, Iyaye na iya zama mai saurin fushi, da farko suna nuna bunƙasa da kuma jijiyoyin kai. Idan wannan bai isa ba, to manya za su yi fada da mai farautar, su kashe fikafikansu mai karfi kuma su rusa manyan kudade, sannan kuma sun yi nasarar kashe masu farautar a cikin girman nauyinsu a cikin 'yan adawa. Fitar da tsofaffi lokacin da ba su da wuya a gida, duk da cewa sun iya farautar zinare da gaggafa, duk da cewa galibin waɗannan lamuran baƙon abu ne. Hoton Bald Eagle ( gaggafa leucocephalus ) An kai hari na gaba da kai hare-hare na babban ƙaho a tsakiyar jirgin sama kwanan nan, kodayake swan ya sami nasarar tsira daga yunƙurin a tsinkayar.
Matsayin Kariya
A farkon karni na 20, wannan nau'in ya kusan kai wa halaka - tsuntsaye 69 ne kawai suka rage a cikin Amurka a 1932. Irin wannan lalacewar lambobi ya kasance sakamakon farauta mai zurfi da kasuwanci cikin fuka-fukan fuka-fuki da fatalwar kakakin. Cikakkiyar haramtacciyar dokar farauta da kuma samar da yanayi da dama ya sanya wa mai son busa ƙaho damar dawo da yawan jama'arta; ya ci gaba da ci gaba har zuwa yau. A cikin Amurka, an ma yada wannan nau'in swans daga barazanar zuwa nau'in da ba a sani ba.
Lambar
A farkon karni na karshe, ƙahowar ƙaho ƙazanta ce, tun da kusan mutane sun keɓar da yawan jama'a. A cikin shekaru 30 da suka gabata, yawan nau'ikan sun girma a hankali. A lokaci guda, yawan haɓaka yana ƙaruwa akai-akai.
Amma karuwa da yawan bugun tururuwa na hana shi yawaitar karuwa, tunda wadannan wakilan dangi suna gasa da juna sosai. Amma yana da mahimmanci a san cewa masu yiwuwar ci gaban jama'a sun yi yawa. A yau, kusan 19,000 na waɗannan tsuntsaye suna zaune a Arewacin Amurka.
Habitat
- fadama da tabkuna,
- kewayen teku da na bays,
- jinkirin guduna masu gudana.
Wadancan mutanen ne kawai suke rayuwa a Alaska. Suna tashi kudu da sashin ƙasa kuma zuwa arewacin Amurka. Wa] annan wayoyin da ke zama a arewaci da yamma na Kanada ba su tashi ba domin hunturu.
Tsaro
Arnuka da yawa da suka gabata, waɗannan tsuntsayen sun rayu a ko'ina cikin Kanada ta zamani da Amurka. Amma sakamakon farautar su, yawan mutane yayi yawa. An nemi su don samun nama mai daɗi, kazalika da ƙoshin fuka-fukai da fuka-fukan, waɗanda ake amfani da su don dalilai daban-daban. Sun sanya matasai, kayan ado, amfani da rubutu. Yin farauta mai tsananin yawa, da kuma raguwa a yankuna da wadannan tsuntsayen suke zaune, sun haifar da mummunan sakamako. Masana kimiyya a farkon karni na 20 sun sami damar kirga kimanin mutane 70 kawai.
An haramta farauta wadannan tsuntsayen. Bugu da kari, an kirkiro adadi da yawa. Aikin da aka yi don adana tallafin bai zama a banza ba. A yau, waɗannan swans mai lamba 30,000. Amma, duk da cewa adadinsu yana ƙaruwa, dokar hana lalacewarsu tana aiki. Hannun ajiyar ba kawai kare tsuntsaye ba ne, har ma yana taimaka musu su tashi kaji. Bugu da kari, gonaki da wuraren kiwo suna aiki da karuwar lambobi.
Bayanan Gaske
Habitat
Trumpeter swans suna zaune a cikin sararin samaniya na arewacin Amurka ta Arewa, suna zaune a tundra da daji-tundra. Sun fi son su zauna a cikin sarari a kusa da jikunan ruwa:
- Tabkuna
- Kogin Nilu mai gudu,
- Limanov,
- Hanyoyi
- Bude wuraren bushewa.
Tsuntsaye ne kawai ke zaune a Alaska. Suna yin hunturu a latin kudu na sashin ƙasa da kuma arewacin Amurka. Swans da ke zaune a yankuna na yamma da arewacin Kanada na kasance cikin hunturu a wuraren kiwo.