YCrow vs Raven
Crows belongs rau tsev neeg ntawm cov noog hu ua Corvidae uas suav nrog ravens, magpies thiab jays. Yog li ntawd, yog tias koj tsis meej pem ntawm tus cw thiab raven, nco ntsoov tias tus cw tuaj yeem yog raven, jay lossis magpie tab sis txhua tus ravens tsis yog qhov tseem ceeb. Txawm hais tias zoo ib yam li ob qho tib si dub, muaj ntau qhov sib txawv ntawm crows thiab ravens uas suav nrog qhov sib txawv ntawm qhov tsos, lawv tus cwj pwm thiab qhov chaw nyob. Kab lus no yuav sim tshem tawm ib qho kev tsis meej pem hauv lub siab ntawm cov neeg nyeem txog ib tug cw thiab raven.
Pib nrog, muaj qhov sib txawv ntawm lawv lub cev. Thaum ib tug qaib ntsuas 17-21 ntiv tes nrog lub tis ntawm 33-39 ntiv tes, ib tug nees loj nrog qhov ntsuas ntawm 22-27 ntiv tes thiab tisspan ntawm 46 ntiv tes. Ib tug nyav hnyav txog 11-21 ounces thaum ib tug raven hnyav 24-57 ooj. Yog li ib tug raven yog considerably loj noog dua ib tug crow. Txawm hais tias ob qho tib si raven thiab crow yog xim dub, ravens feathers ci ntsa iab thiab muaj ib lub tinge ntawm ntshav thaum pom nyob rau hauv lub hnub ci ci. Ntawm qhov tod tes, ib tug cw muaj tag nrho cov plaub dub. Nws muaj qhov sib txawv yog cov duab ntawm lawv cov tails. Ib tug raven tus Tsov tus tw yog daim duab peb sab nyob rau hauv cov duab thaum ib tug maum tus Tsov tus tw yog square thiab txawm nyob rau hauv cov duab. Koj yuav xav tsis thoob yog tias ib tug nquab muaj sia nyob txog 8 xyoo, thaum tus nquab yuav nyob txog 30 xyoo.
Mloog ob tug noog. Yog hais tias koj hnov ib tug caw, nws yog ib tug cw, yog hais tias koj hnov ib tug croaking, nws yog ib tug raven. Ib tug cw muaj ib daim nqi me dua li ib tug raven uas tseem muaj caj pas shaggy. Thaum daim nqi ntawm tus crow muaj qhov nkhaus downward, raven's bill mus parallel. Yog koj saib ob tug noog nyob rau hauv lawv lub davhlau, koj yuav pom tias ib tug raven ua somersaults thaum ib tug cw tsis ua li ntawd.
Tus cwj pwm ntawm ib tug raven txawv ntawm ib tug luav. Thaum ib tug raven yog ib tug scavenger thiab ua raws li cov tsiaj nyeg los noj ntawm cov khoom seem, ib tug crow feem ntau snoops mus rau hauv av thiab khaws cov khoom noj los ntawm cov khib nyiab. Crows nrhiav zaub mov hauv pab pawg thaum raven yos hav zoov ib leeg. Crows tsis yog qhov ntshai ntawm tib neeg thiab koj tuaj yeem pom lawv hauv lub vaj, txoj kev, ncej hluav taws xob thiab txawm tias nyob rau saum cov tsev. Tab sis ravens txaj muag ntawm tib neeg thiab pom nyob rau hauv hav zoov thiab toj.
Crow yog yeeb ncuab ntawm cov neeg ua liaj ua teb vim lawv muaj npe nrov rau kev rhuav tshem cov qoob loo. Ravens tsis tshua pom hauv cov neeg ua liaj ua teb. Muaj ntau ntau yam ntawm ob tus crows thiab ravens.
Qhov txawv ntawm Crow thiab Raven
• Txawm hais tias ob leeg yog dub, kwj yog loj dua cws thiab hnyav dua
• Qav muaj lub neej me dua li kwj uas muaj peev xwm nyob tau txog 30 xyoo
• Crows tau pom yooj yim hauv cov nroog whereas ravens feem ntau pom hauv hav zoov thiab toj
• Crows ua suab cav thaum ravens croak
