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　　潘??(pan)晟??(sheng)昱??(yu)亦??(yi)指??(zhi)出??(chu)??，觀??(guan)察??(cha)發(fā)??(fa)現(xiàn)??(xian)候??(hou)鳥??(niao)北??(bei)遷??(qian)時(shí)??(shi)間??(jian)出??(chu)現(xiàn)??(xian)提??(ti)前??(qian)現(xiàn)??(xian)象??(xiang)??，抵?(di)達(dá)??(da)過??(guo)早??(zao)可??(ke)能??(neng)遭??(zao)遇??(yu)“倒??(dao)春??(chun)寒??(han)”??，導(dǎo)?(dao)致??(zhi)食??(shi)物?(wu)短??(duan)缺??(que)和??(he)雛??(chu)鳥??(niao)凍?(dong)亡??(wang)??。?因??(yin)此??(ci)??，每??(mei)年??(nian)遷??(qian)徙??(xi)季??(ji)的??(de)觀??(guan)測(cè)??(ce)和??(he)護(hù)??(hu)飛??(fei)工??(gong)作??(zuo)變??(bian)得??(de)更??(geng)加??(jia)重??(zhong)要??(yao)??，目??(mu)前??(qian)吉?(ji)林??(lin)各??(ge)處??(chu)濕??(shi)地??(di)都??(dou)有??(you)巡??(xun)護(hù)??(hu)隊(duì)??(dui)伍??(wu)??，為?(wei)候??(hou)鳥??(niao)構(gòu)??(gou)筑??(zhu)安??(an)全??(quan)遷??(qian)徙??(xi)保??(bao)障??(zhang)網(wǎng)??(wang)??。(完??(wan))　　再??(zai)往??(wang)西??(xi)??，“中??(zhong)國(guó)??(guo)白??(bai)鶴??(he)之??(zhi)鄉(xiāng)?(xiang)”鎮(zhèn)?(zhen)賚??(lai)早??(zao)早??(zao)便?(bian)迎??(ying)來??(lai)了??(le)遷??(qian)徙??(xi)先?(xian)頭??(tou)部??(bu)隊(duì)??(dui)??。??在??(zai)14.4萬??(wan)公??(gong)頃??(qing)的??(de)吉??(ji)林??(lin)莫??(mo)莫??(mo)格??(ge)國(guó)??(guo)家??(jia)級(jí)??(ji)自??(zi)然??(ran)保??(bao)護(hù)??(hu)區(qū)??(qu)里??(li)??，已??(yi)現(xiàn)??(xian)大??(da)批??(pi)白??(bai)鶴??(he)、灰??(hui)鶴??(he)、白??(bai)頭??(tou)鶴??(he)的??(de)身??(shen)影??(ying)??，數(shù)??(shu)萬??(wan)只??(zhi)大??(da)雁??(yan)、野??(ye)鴨??(ya)在?(zai)濕??(shi)地?(di)周??(zhou)邊??(bian)活??(huo)動(dòng)??(dong)??，雁??(yan)鶴??(he)齊??(qi)鳴??(ming)熱??(re)鬧??(nao)非??(fei)凡??(fan)??。目??(mu)前??(qian)??，白??(bai)鶴??(he)、東??(dong)方??(fang)白??(bai)鸛?(guan)等?(deng)候??(hou)鳥??(niao)已?(yi)開??(kai)始??(shi)產(chǎn)??(chan)卵??(luan)??。未??(wei)來??(lai)40天??(tian)??，這?(zhe)里??(li)將??(jiang)匯??(hui)聚??(ju)全??(quan)球??(qiu)三??(san)分??(fen)之??(zhi)二??(er)的??(de)白?(bai)鶴??(he)種??(zhong)群?(qun)??。。