Nqaij yog cov chav kawm ntau tshaj plaws ntawm cov tsiaj vertebrates, uas muaj txog 10,000 hom. Nws yog ntseeg hais tias lawv originated los ntawm ancient ya cov tsiaj reptiles. Copepods yog cov tswv cuab ntawm Pelican xaj. Cov noog dej loj no nyob ze ntawm cov dej thiab noj ntses. Qhov kev txiav txim no suav nrog txog 70 hom, nws suav nrog 6 tsev neeg:
- nab caj dab;
- frigate;
- pelican;
- phaeton;
- Bannet.
Snakeneck
Snakebirds, tseem hu ua serpentine noog, yog tib lub genus ntawm tsev neeg darter. Tam sim no, tsuas muaj 4 hom: Asmeskas, African, Australian, Indian darter. Hom Indian Darter, los ntawm txoj kev, yog nyob rau verge ntawm extinction vim tib neeg kev ua ub no thiab chaw nyob puas tsuaj.
Npaj muaj lub cev ntev li ntawm 80-90 centimeters, lawv qhov hnyav tuaj yeem ncav cuag 1.5 kilograms. Lub darter muaj lub caj dab siab heev thiab hloov tau yooj yim, zoo li tus nab curving, ib tug ntev beak nrog jagged npoo. Plumagenoog tsaus, txiv neej ci dua. Cov noog nyob hauv thaj chaw sov thiab subtropical ze ze ntawm cov dej tshiab. Cov zaub mov tseem ceeb rau cov noog yog ntses. Darter nyob ua khub, yug me nyuam tuaj yeem ua raws caij nyoog thiab xyoo puag ncig - nyob ntawm qhov chaw nyob. Clutch ntawm 2-6 qe, incubation feem ntau kav txog 25-30 hnub. Lub neej ntev ntawm cov noog yog li 9 xyoo.
frigate
Lub frigate belongs rau tsev neeg ntawm marine pelicans. Cov noog loj: nws lub cev ntev yog 80-104 centimeters nyob rau hauv ntev. Nws muaj tis dav (txog 2 meters hauv qhov ntev), lub taub hau loj, lub qhov ntswg ntev, thiab cov paws me. Lub plumage ntawm cov neeg laus feem ntau yog xim dub nrog lub ntsej muag zoo nkauj, poj niam ntawm qee hom yog dawb. Cov tub ntxhais hluas frigatebirds muaj plumage xim av thiab lub taub hau dawb.
Copepod seabirds xaiv qhov chaw zes ntawm cov Islands tuaj ze ntawm hiav txwv, feem ntau nyob hauv cov cheeb tsam, feem ntau nyob nrog lwm hom seabird. Cov zes tau muab tso rau ntawm cov ntoo qis, hauv hav zoov thiab tsuas yog rau ntawm pob zeb. Frigatebirds nteg ib lub qe, ob niam txiv incubate tus qaib. Incubation kav 40-50 hnub.
Cov noog no hu ua sea pirates, vim lawv noj lwm tus noog, tua lwm tus qaib. Lawv lawv tus kheej ywj pheej ntes ntses, squid los ntawm qhov chaw ntawm dej, ntawm ya. Cov copepods no tsuas tuaj yeem ya los yog ya, lawv ob txhais ceg tsis muaj zog, yog li lawv tsis tuaj yeem ua luam dej, dhia dej, lossis taug kev hauv av. Frigate hom muaj xws li:
- Big frigate;
- Zoo kawg frigate;
- Voznesensky frigate;
- Christmas frigate;
- frigate Ariel.
Pelicans
Pelicans tuaj yeem hu ua tus sawv cev loj tshaj plaws ntawm kev tshem tawm ntawm copepods. Nyob rau hauv Russia, lawv nyob los ntawm 2 hom: liab thiab curly pelicans, thiab tag nrho cov muaj 8 hom nyob rau hauv lub ntiaj teb no. Qhov hnyav ntawm cov noog txawv ntawm 7 mus rau 14 kilograms, lub cev ntev - txog 180 centimeters.
Cov noog no muaj tus Tsov tus tw luv, tsis loj lub taub hau, caj dab ntev, lub caj dab loj loj. Ntawm nws hauv qab yog ib lub hnab tawv rau ntes ntses, uas muaj peev xwm ncav cuag tau zoo heev. Sab saum toj ntawm beak zoo li lub hau. Cov noog muaj lub cev loj heev clumsy, tsis muaj zog ob txhais ceg. Lub plumage yog dawb, grey, tej zaum nrog ib tug liab tint.
Pelicans nyob hauv txhua lub tebchaws tshwj tsis yog Antarctica. Lawv nyob hauv cov dej hiav txwv ntiav, ze cov pas dej me me (tshiab thiab qab ntsev), ntawm lub qhov ncauj ntawm cov dej loj. Cov noog noj ntses, uas lawv tau nrog lawv cov beak los ntawm qhov chaw ntawm dej. Cov tib neeg zes hauv cov cheeb tsam, nws tshwm sim tias ob peb khub ntawm cov noog tsim ib lub zes. Loj pelicans tsim zes rau hauv av, thaum me me tsim zes nyob rau hauv ib tsob ntoo. Feem ntau tsis muaj ntau tshaj 2-3 tus menyuam qaib hauv ib tus menyuam.
Phaeton
Phaetons yog noog dej hiav txwv. Lawv yog cov nruab nrab loj, dawb thiab dub hauv cov xim, uas tej zaum yuav muaj paj yeeb lossis txiv qaub tint. Cov duab ntawm tus Tsov tus tw yog wedge-puab, nruab nrab tus Tsov tus tw plaub yog ntev heev, ob txhais ceg tsis muaj zog, luv.
Phaetons tsis tuaj yeem nyob hauv av. Rau noog noogya mus rau hauv dej, ntes ntses, squid, feem ntau ntes ya ntses. Cov noog yog monogamous, qhov chaw zes raug xaiv nyob rau hauv secluded Islands tuaj ntawm 3 dej hiav txwv, nyob rau hauv subtropical thiab tropical cheeb tsam, nyob rau hauv siab pob tsuas. Cov noog no tsis tsim zes, tab sis nteg lawv cov qe rau ntawm pob zeb. Muaj ib lub qe nyob rau hauv lub clutch, incubation kav 41-45 hnub. Tsev neeg muaj ib genus nrog peb hom:
- Red-tailed Phaeton;
- Yellow-billed phaeton;
- Red-billed phaeton.
Cormorants belongs rau tsev neeg ntawm lub detachment ntawm copepods. Lawv tuaj yeem muab faib ua ob hom. Thawj suav nrog 29 hom, nws tau faib thoob plaws ntiaj teb. Nws qhov sib txawv tseem ceeb yog cov noog ya. Cov neeg sawv cev ntawm lwm genus tsis ya, lawv nyob hauv Galapagos Islands.
Ntawm cov yam ntxwv ntawm cormorants yog cov hauv qab no:
- lub cev ntev txog 1 meter;
- caj dab ntev;
- tail ntev heev, nyuaj.
Feem ntau cov noog no muaj cov plumage dub, tab sis qee hom yuav muaj plab dawb. Cormorants coj txoj kev sib haum xeeb ntawm lub neej nyob rau hauv cov teb chaws uas muaj huab cua kub, thiab nyob rau hauv txias thiab temperate latitudes - migratory. Habitat - hiav txwv, pas dej thiab dej loj. Cov noog tuaj yeem ua luam dej thiab dhia dej zoo. Qhov tseem ceeb ntawm lawv cov zaub mov yog ntses. Cormorants zes hauv cheeb tsam, npaj zes ntawm ntoo, pob zeb, tiaj tus ntug dej.
Gannets
Gannets yog seabirds. Lawv lub cev ntev yog 64-100 centimeters, hnyav - txog 3.6 kg. Plumage tshwm simdawb, xim av thiab dub. Cov noog ya zoo, dhia rau cov tsiaj nyeg los ntawm qhov siab ntawm 15-30 meters. Lawv cov zaub mov muaj ntses ntawm tsev neeg herring.
Gannets zes nyob rau hauv cov cheeb tsam ntawm cov Islands tuaj ze thaj av loj, tshwj tsis yog rau Antarctica thiab North Pacific. Lub clutch feem ntau muaj 2-3 qe. Ib qho ntawm qhov tsis zoo tshaj plaws copepods yog xiav-ko taw booby. Txawm li cas los xij, nyob rau hauv cov huab cua lawv yog cov dexterous tshaj plaws fliers!
