Cov ntaub ntawv sau qoob loo xyoo tas los tau nqis txog 40 feem pua ntawm xyoo 2017-18. Cov ntaub ntawv xyoo no tsis tiav tab sis tuaj yeem zoo ib yam li xyoo tas los. Ib txoj kev xav tau espoused nyob rau hauv ob peb xyoos dhau los uas Mississippi Flyway tab tom tsiv westward.
Puas yog Mississippi Flyway hloov?
Northern Mississippi Flyway - Great Lakes
Cov pov thawj tshawb fawb pom tau tias huab cua ntawm thaj av Great Lakes twb hloov pauv: txhua xyoo qhov kub thiab txias tau nce siab dua thiab siab heev Cov xwm txheej kub kub tau tshwm sim ntau zaus.
Puas duck migration qauv hloov?
Tsis muaj qhov qhia tau tias cov qauv tsiv teb tsaws mus ntev tshwm sim tom qab txhua xyoo raws li cov neeg yos hav zoov pom. Nws yuav luag tag nrho cov huab cua-tsav. … Txawm hais tias Boyd qhov kev paub dhau los, ntau tus neeg yos hav zoov nyob hauv nruab nrab-latitudes tau tshaj tawm tsawg dua os thaum lub caij ntxov.
Mississippi Flyway pib qhov twg?
Pib hauv central Canada thiab ncab mus rau Gulf of Mexico, Mississippi Flyway yog lub npe muab rau txoj kev ua raws li cov noog tsiv los ntawm lawv thaj chaw yug me nyuam hauv North America mus rau lawv. lub caij ntuj no nyob rau sab qab teb…
Dab tsiv teb tsaws chaw nyob qhov twg?
Cov Ntsiab Lus Tseem Ceeb: Cov noog tsiv teb tsaws, xws li cov ducks mallard ducks, txav nruab nrab ntawm sab qaum teb zes thaj chaw nyob rau lub caij ntuj sov thiab sov so rau yav qab teb thaj chawrau so thaum lub caij ntuj no. Lawvxav tau cov av ntub dej los noj thiab so, San Francisco Bay yog ib qho chaw nyob.
