Yuav ua li cas yog qhov zoo sibxws ntawm ib tug muab nqos thiab swifts?

Swallows thiab Martins yog ib tug yeej muaj tseeb cim ntawm lub sov lub caij ntuj sov hmo ua ke. Lawv muaj ib qho zoo kawg ceev cheb dua neeg lub hau, deftly txais yoov thiab lwm yam me me kab. Ntawm cov hoob kawm, lawv yog cov tag ntau hom, tab sis qhov zoo sibxws ntawm ib tug muab nqos thiab swifts cuab. Xav txog cov tseem ceeb tshaj plaws piv txwv.

Ob hom lug faib tsis tau tsuas yog thoob plaws lub teb chaws tab sis kuj nyob ib ncig ntawm lub ntiaj teb no. Xav tias lub High North yog tsis txaus kab, swallows thiab swifts muaj kuj tsis muaj. Feem ntau ntawm lawv nyob rau hauv cov nqe lus ntawm lub steppe cheeb tsam. Qhov ntev thiab dav anatomical qauv ntawm cov noog yog tseem zoo sib xws.

Qhov no zoo sib thooj ntawm ib tug muab nqos thiab swifts vim yuav luag zoo tib yam txoj kev ntawm lub neej. Tag nrho cov ntawm lawv noj xwb kab, thawb lawv ncaj qha rau hauv lub davhlau. Uas yog vim li cas lawv ntse thiab elongated tis, ib tug kaus ncauj thiab yuav luag atrophied ceg limb.

Swallows thiab swifts yeej siv tag nrho nws lub sij hawm nyob rau hauv cov huab cua, tuag siav trifle. Ob hom pub lawv me nyuam qaib thawj zaub mov: kab ntes tau nyob rau hauv lawv cov kaus ncauj nrog nplaum cov qaub ncaug muab nyob rau hauv lub "hnab", uas hlub tub ntxhais hluas. Raws li koj tau pom, kev zoo sib thooj ntawm ib tug muab nqos thiab swifts muaj.

Nyob rau hauv tas li ntawd, cov noog yog heev tsis tshua zaum rau hauv av. Qhov no yog vim lub twb hais hu Atrophy ntawm ob txhais ceg. Ib zaug rau tus nto ntawm cov av, lawv muaj peev xwm tsis kom nws cov wearer nyob rau hauv ib tug upright txoj hauj lwm, tab sis vim hais tias cov noog yuav siv sij hawm tawm, tsuas yog cia siab rau tus tshaj thiab haib tis.

Los ntawm txoj kev, tsis tooj mus rau nrov lub tswv yim, ob qho tib si ntawm cov noog yuav ya mus los ntawm qhov av (peb twb wrote txog nws), tab sis yuav ua rau nws lawv tsuas muaj tsis muaj dab tsi. Nkag loj kab lawv tsis xav kawm, thiab ua cov zaub mov ntawm ib tug predator, lawv muaj peev xwm heev sai sai.

Nyob rau hauv cov qauv ntawm cov ob txhais ceg yog muaj lwm zoo sib thooj ntawm ib tug muab nqos thiab Swifts: nws yog tsim los kom cov noog yuav tsum koom rau ib tug heev ntxhab qhov chaw uas pab neeg ntawm cov tsiaj zes rau ntxhab cliffs qhov twg txhom cia li yuav tsis tau lub cev tau muaj.

Tab sis nyob rau hauv tib lub ko taw nta qhov txawv ntawm ib tug muab nqos los ntawm swift. Nyob rau hauv no extremity tetradigitate swift, thiab cov ntiv tes tso rau hauv sib txawv cov lus qhia. Lauj xibnas cov xov los yog hlau, nws tsuas tsis tau.

Nyob rau tib lub swallows ib tug ntiv tes mus rau lub rear: no ko taw yog ib qho yooj yim mus lob tuav ntawm ib tsob ntoo ceg los yog hlau. Yog hais tias koj pom ib Rev ntawm cov noog nyob rau hauv lub hlua taws xob nyob ntawm tej, nws swallows nws.

Tab sis dab tsi yog qhov tseem ceeb feature uas koom siab ua ke ob hom sib txawv? Nws los txog rau kev noj haus. Sweeps peb nyob rau hauv nws sai davhlau, lawv noj kilos ntawm midges, yoov tshaj cum thiab lwm yam teeb meem kab.

Thaum nyob rau hauv tej cheeb tsam ntawm nruab nrab band me ntsis swallows los yog swifts, nws yog tam sim ntawd tshwm nyob rau hauv lub ntse nce nyob rau hauv lub xov tooj ntawm cov ntshav-ib co kab kab. Tsis tsuas yog ua lawv xa ib tug neeg ib tug ntau ntawm cov txaav, tab sis kuj muaj ib tug tag nrho pawg ntawm cov kab mob, thiab vim hais tias ntawm cov noog yuav tsum tau muaj kev tiv thaiv.

Nyob rau hauv Feem ntau, tag nrho cov lub noog (swallows thiab Martins - xws li) yog ib feem ntawm biogeocoenose, uas yog inhabited. Tej teeb meem uas mus rau lawv tib neeg kev ua ub no nws thiaj li fav xeeb tawm tsam nws. Nco ntsoov qhov no!