Ivory-billed Woodpecker yog ntawm 24 hom noog nyob rau sab hnub poob Hemisphere suav tias yog "poob." Cov tsiaj no tau txais cov xwm txheej Critically Endangered los ntawm International Union for Conservation of Nature - ib lub npe uas lees paub tias hom yuav tsis ploj mus, tab sis nws tsis paub tias muaj sia nyob …
Vim li cas ivory-billed woodpeckers ploj lawm?
Ivory-billed Woodpecker tej zaum yuav ploj mus. … Kev puas tsuaj ntawm cov ntoo pecker qhov chaw loj lossis qhov qub-loj hlob hauv hav zoov ua rau cov pej xeem poob qis, thiab los ntawm xyoo 1880s cov hom tsis tshua muaj. Kev puas tsuaj hav zoov tau nrawm dua thaum Tsov Rog Ntiaj Teb Zaum Ib thiab II kev ua tsov rog, ua kom puas tsuaj ntau ntawm nws qhov chaw nyob.
Thaum twg ivory-billed woodpecker extinct?
Lub sijhawm tom qab Tsov Rog Thoob Ntiaj Teb thib Ob pom cov pej xeem uas siv cov paj ntoo uas muaj ivory-billed woodpecker mus rau qhov poob sai, vim tias cov tuam txhab txiav ntoo tau rhuav tshem cov hav zoov qub qub uas tau ua lawv qhov chaw nyob thaum yos hav zoov ntau dhau los tshem tawm cov noog saum huab cua. Los ntawm the thaum ntxov 1920s, ornithologists tshaj tawm cov noog kom ploj mus.
Puas yog cov kaus ntxhw-billed woodpecker tau rov tshawb pom?
Nws tau xav tias tau ploj mus nyob rau nruab nrab ntawm lub xyoo pua nees nkaum. Cov noog tau rov tshawb pom hauv thaj tsam "Big Woods" ntawm sab hnub tuaj Arkansas hauv xyoo 2004, tab sis tsis tau raug tshem tawm txij li. Nyeem ntxiv txog kev tshawb nrhiav rau Ivory-billed Woodpecker.
yog dab tsiQhov txawv ntawm ib tug pileated thiab ivory-billed woodpecker?
Pileated Woodpeckers muaj ib daim nqi me dua, tsaus ntuj lossis silvery dua li Ivory-billed Woodpeckers. Lawv kuj muaj lub caj pas dawb (tsis yog dub). Ib tug perched pileated tsis muaj lub nraub qaum dawb loj ntawm Ivory-billed Woodpeckers.