Peb txhua tus tau pom ducks noj thaum ua luam dej hauv pas dej lossis lwm lub cev dej. Tab sis koj puas tau xav tias lawv noj dab tsi tiag? Ntau hom noog hauv dej noj ntses ua zaub mov noj, tab sis ua li cas txog ducks? Puas yog nas noj ntses?
Ducks noj ntau yam zaub mov uas haum lawv cov khoom noj khoom haus, thiab yog, ducks noj ntses. Tab sis hom ntses nyob ntawm hom os.
Ntawm no, peb saib tsis yog hom ntses uas ducks noj xwb tab sis lwm yam ua rau lawv noj tsis tu ncua. Peb kuj saib seb ducks noj li cas, nrog rau cov ntaub ntawv nthuav dav txog lawv cov nqi.
Nyob Me Me Txog Ducks
Ducks yog ib feem ntawm tsev neeg Anseriformes, uas suav nrog geese thiab swans, thiab muaj ntau txog 162 hom thoob ntiaj teb. Tawm ntawm tag nrho cov hom no, tej zaum koj yuav xav tsis thoob thaum kawm tias tsuas muaj ob qho ntawm cov tsiaj hauv tsev: Muscovy thiab Mallard. Tag nrho cov ducks hauv tsev tau nqis los ntawm ib hom no (tab sis tshwj xeeb tshaj yog Mallard).
Lawv yog cov noog sib raug zoo uas xav tias xis nyob dua thaum nrog cov noog loj dua. Txij li thaum lawv siv sij hawm ntau nyob ib ncig ntawm lub cev dej, lawv kuj hu ua "waterfowls."
Qhov nruab nrab lub neej rau ducks feem ntau yog 5 txog 10 xyoo. Hais tias, ducks tuaj yeem nyob ntev txog 20 xyoo yog tias lawv saib xyuas zoo. Lub ntiaj teb cov ntaub ntawv rau cov duck nyob ntev tshaj plaws mus rau ob khub ducks los ntawm South Africa uas nyob mus txog thaum lawv muaj 49 xyoo!
Yog koj twb tau hnov cov lus hais tias, "dej tawm ntawm tus duck rov qab," nws tseem ceeb txhais tau tias tsis txhob thuam lossis thuam koj. Qhov no tau tshwm sim vim tias cov ducks muaj cov plaub tsis muaj dej, thiab cov dej ntws tawm ntawm cov duck's plaub. Thaum lawv dhia dej mus rau noj, txawm tias cov plaub mos mos ntawm ib sab ntawm lawv cov tawv nqaij yuav qhuav tag.
Ducks noj dab tsi?
Ducks yog omnivores thiab foragers. Lawv noj ntau yam nroj tsuag thiab tsiaj txhu, thiab lawv tshawb nrhiav cov zaub mov zoo tshaj plaws. Cov ducks noj dab tsi nyob ntawm hom thiab lawv lub hnub nyoog.
Hais lus, ducks yuav noj:
- Mus ntses
- Ntses qe
- Aquatic nroj tsuag thiab algae
- Seed and grain
- Vaj
- Grass
- Salamanders
- Qab thiab tadpoles
- Kab thiab kab ntsaum
- Roots
Nyob Me Me Txog Duck's Bill
Ducks muaj beaks, lossis daim nqi, uas pab lawv ntes thiab nqos lawv cov zaub mov. Ducks yog dhia dej (kom nrhiav tau lawv cov zaub mov) lossis dabbling (paub rau saum npoo dej).
Dabbling ducks muaj cov nqi muag muag ntawm cov npoo vim lawv pom lawv cov zaub mov los ntawm kev kov, yog li lawv cov nqi ua rau lawv xav tau lawv cov zaub mov. Lawv kuj muaj tus ntsia hlau me me tom kawg ntawm lawv cov nqi uas yog siv los snag thiab tswj lawv cov zaub mov.
Cov nqi dej hiav txwv kuj muaj qee yam hu ua lamellae, uas yog cov me me uas pom nyob rau hauv lawv cov beak thiab zoo li cov hniav me ntsis. Cov qauv no ua zoo li sieves, ua rau cov ducks sift thiab tshem tawm txhua yam uas lawv tsis xav noj, xws li dej thiab av nkos. Cov lamellae kuj ua rau cov noog tau txais kev tuav zoo ntawm cov zaub mov nplua, zoo li ntses.
Ib Me Nyuam Txog Yuav Ua Li Cas Ducks Noj
Dab noj thiab zom lawv cov zaub mov zoo li cas. Vim cov ducks tsis muaj hniav, lawv nqos lawv cov zaub mov tag nrho. Cov zaub mov nkag mus rau hauv lawv lub gizzard, uas yog lub cev nqaij daim tawv pom nyob rau hauv lawv lub plab, thiab nyob rau hauv pem hauv ntej ntawm nws kom nws thiaj li yooj yim digested.
Qee hom os, zoo li Scaup thiab Eider, tuaj yeem nqos tau clams thiab mussels tag nrho, plhaub thiab tag nrho, thiab lawv cov gizzards yuav zom tag nrho rau lawv.
Ducks kuj txhob txwm noj tej pob zeb me me thiab xuab zeb, ces muab khaws cia rau hauv lub gizzard los pab txoj kev sib tsoo.
Cia peb tham txog cov ntses no
Cov ntses uas duck noj yog nyob ntawm hom thiab qhov loj ntawm tus os. Me ducks noj me ntses, thiab cov ducks loj noj ntses loj.
Vim hais tias, tsuas yog ib hom duck noj ntses ua ib feem tseem ceeb ntawm lawv cov zaub mov: Cov Khoom Noj Khoom Haus.
Common Merganser
Cov ducks no noj ntses, nrog rau cov mollusks, worms, crustaceans, qav, nroj tsuag, noog, thiab kab.
Thaum lub caij ntuj no, lawv noj ntses, uas suav nrog:
- Trout
- Salmon
- Zaj
- Sicklebacks
- Suckers
- Minnows
- Chub
- Sunfish
- Eels
Lwm Ducks
Mallards noj ntau yam zaub mov, xws li cov noob, cov nroj tsuag dej, cov kab hauv av, cov kab dej hauv dej, cov cw dej tshiab, qwj, thiab nplej. Lawv noj ntses, tab sis cov no tsis yog ib qho tseem ceeb hauv lawv cov zaub mov zoo li lawv rau Merganser. Mallards nyiam noj ntses me me, xws li minnows, guppies, thiab greylings.
Qhov no kuj mus rau lwm hom os. Txij li thaum lawv yog cov tsiaj txhu, lawv pub rau yam uas ncav cuag, tab sis koj tuaj yeem cia siab tias dhia ducks mus tom qab hom ntses loj.
Yog Koj Muaj Pas Dej
Yog tias koj muaj lub pas dej thiab khaws ntses, koj tuaj yeem cia siab tias geese thiab ducks nrhiav lawv txoj hauv kev thaum kawg. Yog tias koj khaws cov ntses me me ntawm cov nroj tsuag dej ib txwm muaj, yuav luag txhua hom os yuav zoo siab hu nws tsev.
Txawm li cas los xij, ntses loj tsis tau noj ntau zaus. Loj Koi, piv txwv li, tsis tas yuav tsum gobbled los ntawm cov ducks feem ntau, tab sis koj tseem yuav tau saib xyuas miv, herons, raccoons, dev, hawks, owls, nab, thiab egrets - thiab tejzaum nws yog Merganser!
Conclusion
Ducks noj ntses nrog ntau yam khoom noj. Ntses muab tib neeg nrog ntau yam txiaj ntsig kev noj qab haus huv, thiab tib yam tuaj yeem hais tau rau ducks. Muaj nplua nuj nyob rau hauv omega-3 fatty acids tab sis muaj roj tsawg thiab muaj protein ntau, ntses tuaj yeem ua rau duck noj qab haus huv. Nws muab lawv lub zog mus ntev heev.
Dub ducks nyiam noj ntses ntau dua li dabbling ducks vim lawv dhia mus rau hauv dej tob thiab muaj peev xwm caum ntses ntau dua (lub Merganser yog diving os). Yog li, thaum feem ntau cov ducks tsis hnyav ntses noj, lawv yuav noj lawv yog tias lawv loj thiab lub sijhawm nthuav tawm nws tus kheej.
