Cov hom, ib qho ntawm ntau tshaj plaws nyob rau hauv North America, tau ntsib kev txo qis ntawm cov pejxeem hauv 40 xyoo dhau los.
Yuav ua li cas yog Red-winged Blackbird?
Kev lees paub tau hais tias nws yog cov noog uas muaj sia nyob ntau tshaj plaws nyob rau hauv North America, raws li kev suav suav suav suav ntawm cov noog liab-tis dub thaum caij ntuj no qee zaum qhia tias cov tsiaj xoob tuaj yeem suav ntau tshaj li ib lab noog ib pab tsiaj thiab Tag nrho cov khub yug me nyuam thoob plaws North thiab Central America yuav tshaj 250 …
Dab tsi yog cov pejxeem ntawm cov noog liab-tis dub?
Siv cov ntaub ntawv los ntawm North American Breeding Bird Survey (BBS), Red-winged Blackbird pejxeem kwv yees li ntawm 150, 000, 000 tus neeg rau Tebchaws Meskas thiab Canada los ntawm Xyoo 2005 txog 2014 (263.
Kuv tuaj yeem nrhiav tau ib tus noog liab-tis dub nyob qhov twg?
Nrhiav cov noog liab-tis dub hauv cov dej tshiab thiab ntsev, raws cov dej ntws, dej nyab xeeb ntawm cov chaw ntaus golf, thiab cov kev ntub dej, nrog rau cov nyom qhuav thiab cov teb qub. Thaum lub caij ntuj no, koj tuaj yeem pom lawv ntawm cov qoob loo, chaw noj mov, thiab pastures.
Pab npua liab-tis hu ua dab tsi?
Txhua khub ntawm Red-winged Blackbirds tsa 2-3 broods ib lub caij. Txhua zaus lawv tsim lub zes tshiab, uas ua rau lub zes tsis txhob kis kab mob uas tuaj yeem tua cov menyuam noog. Ib pawg blackbirds muaj ntau lub npe sib sau ua ke, suav nrog a "huab", "cluster", thiab"merl" ntawm blackbirds.
