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原標(biāo)題：52老情人岁全程露脸

　　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(niǎo)??(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(guò)??(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(niǎo)??(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(niǎo)??(niao)構(gòu)??(gou)筑秘(zhu)安?(an)全??(quan)遷??(qian)徙??(xi)保??(bao)障??(zhang)網(wǎng)?(wang)??。(完??(wan))　　在??(zai)東??(dong)部??(bu)的??(de)琿??(hun)春??(chun)敬??(jing)信??(xin)濕??(shi)地??(di)??，雁??(yan)群??(qun)蔽??(bi)日??(ri)??。??對(duì)??(dui)棲??(qi)息??(xi)環(huán)??(huan)境??(jing)極??(ji)為??(wei)挑??(tiao)剔?(ti)的??(de)白??(bai)尾??(wei)海??(hai)雕?(diao)、虎??(hu)頭??(tou)海??(hai)雕??(diao)等??(deng)猛?(meng)禽??(qin)也??(ye)結(jié)?(jie)隊(duì)??(dui)到??(dao)來(lái)??(lai)??，它??(ta)們??(men)在??(zai)冰??(bing)面??(mian)踱??(duo)步??(bu)、起??(qi)舞?(wu)??，上??(shang)演??(yan)奪??(duo)食??(shi)大??(da)戰(zhàn)??(zhan)??，難??(nan)得??(de)一??(yi)見(jiàn)?(jian)的?(de)精??(jing)彩?(cai)瞬??(shun)間??(jian)被?(bei)堅(jiān)??(jian)守??(shou)在??(zai)此??(ci)的??(de)中?(zhong)外??(wai)攝??(she)影??(ying)師??(shi)記??(ji)錄??(lu)下??(xia)來(lái)??(lai)??。。