Muaj muaj tsis zoo kawm thiab theej tsawg nyob rau hauv tsev neeg os Goose dawb-fronted Goose. Qhov no tsis yog noog loj tau txais lub npe zoo li no rau nws txoj kev nthuav dav, squeak sib luag hauv lub davhlau.
Lwm txoj kev, tus noog no tseem hu ua dawb-fronted Goose, vim nws yog daim ntawv qhia kiag ntawm lub ntsej muag dawb-Goose dawb. Qee lub sijhawm nws yuav nyuaj rau qhov txawv lawv. Tom qab tag nrho, tus neeg laus-dawb-Goose dawb yuav zoo mus txog qhov tsis muaj kev txwv ntawm Goose. Qhov hnyav ntawm tus txiv neej tsis pub dhau 2.5 kg. Tus naj npawb ntawm cov noog no tau pom muaj tsawg zuj zus nyob rau lub sijhawm tsis ntev los no, yog li ntawd, tsis ntev los no Tsawg Dua-Dawb-Goose Hauv Phau Ntawv Liab.
Mloog lub suab ntawm white-fronted goose noog
Nta thiab thaj chaw nyob
Ib tus neeg laus Cov txiv neej Cov Nqaij Dawb-Goose hlob ntev li 60-70 cm. Nws ob sab tis muaj qhov ntev txog 1.3 meters. Tus noog hnyav kwv yees li ntawm 1.5 mus rau 2.5 kg. Nyob rau hauv cov xim, Tsawg Dua Dawb-fronted Goose heev ntau zoo ib yam li dog dig domestic geese nrog kev sib xyaw grey thiab xim av suab nrov ntawm plumage. Qhov txawv ntawm tus noog yog nws qhov nqaj dub thiab nqaj daj. Nws yuav luag tsis tuaj yeem paub qhov txawv ntawm cov xim ntawm tus cwj mem poj niam dawb-fronted Goose los ntawm tus txiv neej. Lawv tsuas yog pom qhov txawv tshwj xeeb yog lub caj dab.
Ntawm tus txiv neej, nws yog 25-40% ntev dua li tus poj niam. Lub cev qis qis muaj cov nplais ntais ntau dua, thiab muaj ntau qhov dej dua nyob hauv thaj chaw ntawd. Sab nraud ntsia yees duab ntawm lub ntsej muag dawb-Goose, nws tuaj yeem yooj yim to taub nrog lwm tus noog - lub ntsej muag dawb-dawb Goose. Lawv zoo sib xws heev. Lawv qhov sib txawv tsuas yog loj me me, dawb-hauv pliaj yog feem ntau me dua.
Thiab raws li qhov kev piav qhia, sau ntawv ib ncig ntawm lub qhov muag muaj xim daj. Tsis tas li, tus noog yog tsiag ntawv los ntawm qhov chaw dawb loj nyob ntawm hauv pliaj, uas txuas mus rau sab saum toj kawg nkaus ntawm cov noog. Rau cov noog no, cov toj roob hauv pes uas pom zoo tshaj yog roob thiab ib nrab roob. Lawv txiav txim siab thiab tsim lawv lub zes nyob rau hauv cov chaw ze uas muaj dej ntws, pas dej lossis dej ntws me me.
Lub ntsej muag dawb-dawb ntawm Goose feem ntau nyiam nyob hauv taiga, hav zoov-tundra thiab cov chaw uas muaj cov ntoo loj, hauv thaj chaw ntawm hav iav hav zoov hav zoov thiab chaw nyob deb, thaj chaw nkag tsis tau, hauv thaj chaw dej nyab thiab estuaries. Qaum teb sab qaum teb ntawm Eurasia, muaj ciam teb ntawm tundra, thaj chaw ntawm Kola Peninsula mus rau ntug dej hiav txwv ntawm Anadyr, Scandinavian ceg av qab teb yog qhov chaw uas tus goose dwells.
Lawv muaj rau noog tsiv. Rau lub caij ntuj no, Cov Me-Dawb mus tom ntej Goose mus rau thaj av ntawm Dub thiab Caspian Seas, Hungary, Romania, Bulgaria, Greece, thaj av Balkan Penan, Azerbaijan thiab Suav.
Feem ntau feem ntau lawv txhim tsa lawv cov zes nyob ib sab ntawm tus pas dej. Rau lub zes, noog xaiv qhov chaw qhuav ntawm toj me me nyob rau hauv daim ntawv ntawm hillocks, toj thiab pob. Qee lub sij hawm Cov Phaj Dawb Dawb uas muaj nyob hauv cov nceb yuav pom nyob ntawm cov ntoo reed lossis pob ntoo. Nws yog ib qhov me me npog nrog reed stems los yog nqes.
Cwj pwm thiab kev ua neej
Tus Tsawg Tsawg-Dawb-Goose yog noog ceev faj heev, tshwj xeeb tshaj yog thaum nws nyob hauv ib pab yaj. Tab sis, thaum cov poj niam ua rau ncau cov qe thiab daug cov noob, lawv cov kev ceev faj ploj, thiab lawv tuaj yeem lees paub rau lawv tus kheej ntawm qhov deb heev. Cov noog ya ceev ceev txaus, txawm tias ntawm sab lawv cov davhlau zoo li qeeb. Thaum lub sij hawm tsiv teb tsaws rau cov cheeb tsam sov, lub davhlau ntawm grey geese yog nqa tawm ntawm qhov chaw siab.
Thaum lub caij sib tw zoo li no, lawv txav feem ntau hauv ib kab laim ntaws lossis V-shaped cov npoo. Lawv muaj lub ntsej muag khov thiab ruaj khov nyob hauv ntiaj teb saum npoo av. Tsis tas li ntawd, qis dua dawb-fronted Goose tuaj yeem khiav ceev ceev thiab nimbly. Lawv feem ntau nyiam sawv ntawm ib ceg xwb. Nov yog kev kawm noog. Tab sis thaum lub sij hawm muaj kev sib faib nws nyiam ntau solitude nrog nws cov khub thiab zes cais.
Khoom Noj
Tag nrho cov noog los ntawm kev xaj Anseriformes noj ob qho khoom noj cog thiab khoom tsiaj. Ua tsaug rau cov zaub mov zoo li no, lawv tuaj yeem tsim kho thiab muaj nyob hauv qab.
Lesser Dawb-fronted Goose yog ntau dua ntawm cov av hauv av. Txawm hais tias nws nyiam ua luam dej, nws nyuaj rau hu nws cov dej. Yog li ntawd, nws pub feem ntau yog rau dab tsi hlob nyob rau saum npoo ntawm thaj av. Cov nyom ntsuab mus rau yam khoom noj rau lub caij nplooj ntoo hlav.
Nyob rau lub caij nplooj ntoo hlav, nws tsis yog tsuas yog muaj kua, tab sis kuj muaj saturated nrog txhua cov vitamins thiab minerals uas yog li tsim nyog rau txhua yam muaj sia nyob tom qab lub caij ntuj no dhau los. Hlub Tsawg Dua White-fronted Goose thiab nplooj, stems los ntawm cov ntoo me. Yog tias muaj cov teb nrog cog ntoo nyob ze cov chaw nyob ntawm cov noog no, tom qab ntawd lawv tau los ua cov qhua nquag nyob ntawd.
Lub ntsej muag dawb-Goose tshwj xeeb tshaj yog saj zoo li oats, alfalfa thiab nplej nplej, horsetail, paj rwb nyom, sedge. Thaum lub caij sov, cov noog noj ntau yam txiv ntoo. Nws hlub txiv ntoo ntau heev. Lawv lub sijhawm rau noj yog feem ntau thaum sawv ntxov thiab yav tsaus ntuj. Lub sijhawm seem ntawm lub sijhawm tus noog siv rau ntawm dej.
Luam thiab lub neej muaj sia
Nws yog kev cai rau tus txiv neej gose mus yeej tus poj niam thaum lub caij mating. Txwv tsis pub, khub yuav tsuas tsis ua haujlwm. Lawv tsev neeg raug tsim los tsuas yog tom qab muaj kev sib yuav hnyav thiab kev sib tawb. Tus Goose hauv txhua txoj hauv kev nws sim ua kom nyiam qhov gaze thiab saib xyuas ntawm Goose nws nyiam, thiab tsuas yog tom qab mloog zoo rau nws yog nws tau xav tias tus Goose pom zoo rau kev sib yuav. Xws li tus khub yog txiav txim siab tsim.
Tom qab ntawd, nkawm niam txiv ua ke pib txhim kho lawv lub zes. Ua ke lawv khawb ib lub qhov rau nws thiab npog nws nrog qia, moss thiab plaub. Tus poj niam muaj peev xwm tuaj yeem nteg qe rau hauv lub zes tiav. Qhov nruab nrab, ib tus poj niam nteg li 6 lub qe dawb lossis daj.
Qhov no tshwm sim kwv yees li ntawm lub Plaub Hlis thiab Lub Xya Hli. Tus poj niam qis dua dawb-fronted Goose incubates qe ntawm nws tus kheej. Tsim kom loj ntxiv mus li 28 hnub. Tom qab ntawd, cov menyuam qaib yug, qhov kev saib xyuas ntawm uas kiag li poob rau ob leeg niam thiab txiv. Cov txiv neej thiab poj niam tau sim nrog tag nrho lawv lub zog los khaws txoj kev lag luam muaj txiaj ntsig no.
Ib qho ntxiv, lawv qhia lawv cov menyuam ua txhua yam uas lawv paub thiab tuaj yeem ua lawv tus kheej. Txoj kev txhim kho thiab kev loj hlob ntawm cov me nyaum qaib yog qhov ceev txaus. Tsis pub dhau peb lub hlis lawv dhau los ua ywj siab, lawv tuaj yeem ya thiab tau lawv tus kheej cov zaub mov. Tom qab ib xyoos, cov menyuam qaib yuav dhau mus ua tus neeg laus thiab tseem muaj peev xwm kis tau cov menyuam. Tab sis lawv tsis ya deb ntawm lawv cov niam txiv laus. Cov noog sim nyob ze. Lub neej ncua ntawm dawb-fronted Goose nyob rau hauv xwm yog txog 12 xyoo, nyob rau hauv kev poob cev qhev lawv nyob txog 30 xyoo.
