国产av不卡一区二区_欧美xxxx做受欧美_成年人看的毛片_亚洲第一天堂在线观看_亚洲午夜精品久久久中文影院av_8x8ⅹ国产精品一区二区二区_久久精品国产sm调教网站演员_亚洲av综合色区无码一二三区_成人免费激情视频_国产九九九视频

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Going Green

Retired ornithologist recalls search for last of a species

By HOU LIQIANG | China Daily | Updated: 2025-12-08 09:37
Share
Share - WeChat
Liu Yinzeng (center) takes photos of crested ibises in Yangxian, Shaanxi province, in 2011. Three decades earlier, his discovery of seven birds in Yangxian in 1981 was believed to be the last remaining individuals of the species worldwide. ZHANG PENG/FOR CHINA DAILY

For retired ornithologist Liu Yinzeng, the lure of being near his beloved "feathered friends" later in life was too strong, and so seven years ago the 88-year-old upped sticks from Beijing and headed to Yangxian in Shaanxi province, some 1,300 kilometers away.

In Yangxian, every morning, Liu drives his electric buggy to a nearby river to observe the birds, especially the crested ibises, making this ritual the most important part of his day.

Being able to see crested ibises brings him a sense of peace, he said.

"You know what? I've counted carefully many times, and now one out of every 10 egrets you see here in Yangxian is actually a crested ibis," smiled a proud Liu.

He has every reason to be proud.

In May 1981, Liu found seven crested ibises — two pairs of adults and three chicks — in Yangxian, which were thought to be the last remaining crested ibises worldwide.

As of the end of last year, the number of the species has jumped to over 7,000 in China, with most of them in Yangxian.

Seated with hands on his walking stick, the veteran ornithologist vividly recalled how he and his team managed to find the last group of the species.

Before their discovery, the team from the Chinese Academy of Sciences' Institute of Zoology had conducted field research consistently for three years. Despite having trekked more than 50,000 km across China in search of the birds, their efforts were in vain.

"At the time, I had prepared my paper concluding that the crested ibis had become extinct," Liu said.

Assigned to find the crested ibis with a three-year deadline, Liu was running out of time in Tianshui, Gansu, and was nearly ready to abandon the search. That's, however, when hope emerged.

A hunter, hearing of the team's mission, brought them three feathers he believed were from the ibis. Liu's expertise soon confirmed the belief.

He returned to Beijing to secure an additional 2,000 yuan ($283) in funding to sustain the search. With this secured, he then set out for Yangxian.

There, he changed his search strategy. Rather than directly venturing into densely vegetated mountains, he mobilized the public for help. To enlist local support, he broadcast images of the bird on a cinema screen before the start of any film screened in the area.

The strategy worked, with many farmers reporting to him that they had run into the species.

The birds they saw, however, turned out to be only egrets.

The turning point arrived when another hunter — whom Liu recalled as He Choudan — contacted him. The hunter's description matched the features of the crested ibis in every detail, despite the fact that he had observed the bird at an altitude of about 1,200 meters, far above the species' typical range of around 400 meters.

Liu immediately set out for the village near where the hunter had sighted the bird. Darkness was falling as he arrived. While walking downhill, a bird flew overhead. A glimpse of red feathers beneath its wings told him it could be a crested ibis.

Gazing skyward in excitement, Liu lost his footing and fell. By the time he struggled to his feet, the bird had vanished. With no other option, he took shelter with a local family. After three more days of searching, he finally encountered the group of the seven crested ibises.

From then on, Liu and his colleagues devoted themselves to the vital task of guarding the last remaining group of birds. Their busiest period spanned from March to June, the crested ibis' breeding season, during which they maintained a 24-hour vigil under the trees where the birds roosted at night.

When recalling the hardships he and his colleagues endured in the early days of crested ibis conservation, Liu did not go into detail. Instead, he consistently expressed his profound gratitude to the people of Yangxian.

"To protect them, the Yangxian government issued an emergency notice at the time, prohibiting hunting, land reclamation, deforestation and other activities within the birds' habitat. The people of Yangxian were remarkably cooperative and made tremendous sacrifices," he said.

Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
欧美韩国日本一区| 人人干人人插| 性色av一区二区三区| 国产极品一区| 性欧美高清come| 黄视频网站在线| 秋霞a级毛片在线看| 美国一级片在线免费观看视频 | 偷偷要 色偷偷| 91精品国产高久久久久久五月天| eeuss影院第1页在线| 任你操在线观看| 网站黄色在线观看| 农村一级毛片| 暖暖视频日本免费| 黄网站免费看| 2019天天操夜夜操| 5566先锋影音夜色资源站在线观看| 免费白白视频| hd100%videos日本| 麻豆自创视频在线观看| 97cao在线| 99视频资源网| 日本特黄a级高清免费大片| 女人裸体免费网站| 一二三四社区在线视频6| 九九久久久久久久久激情| 日韩电影一区二区三区| 亚洲无线视频| 先锋影音久久| 日本午夜精品视频在线观看 | 韩日精品一区| 免费视频成人| 日本高清精品| 国产精品videossex| 美女视频亚洲色图| 国内精品久久久久久99蜜桃| 欧美亚洲激情| 牛牛国产精品| 亚洲精选国产| 日韩电影免费在线看| 久久国产精品区| 国产精品18久久久久久久久| av午夜一区麻豆| 国产三级一区二区| 亚洲人成在线观看一区二区| 亚洲一区在线视频观看| 日韩欧美国产激情| 欧美日本精品一区二区三区| 日韩视频免费直播| 亚洲人成电影网站色…| 播播国产欧美激情| 69av在线视频| 欧美sm视频| 青青操在线观看| va中文字幕| 一级片在线播放| 中文字幕在线播放| free性欧美16hd| 久久亚洲国产精品尤物| 成人影院中文字幕| 男人操女人免费网站| 欧美精品情趣视频| 黄色一二三区| 在线观看91| 天天操夜夜骑| 亚洲成人套图| 麻豆传媒在线免费看| av毛片午夜不卡高**水| 开心久久婷婷综合中文字幕| 欧美挤奶吃奶水xxxxx| 999国产精品| 亚洲美女色禁图| 国产一区日韩二区欧美三区| 久久亚洲一级片| 亚洲黄色小说网站| 欧美色男人天堂| 日韩成人激情视频| 欧美激情一区二区三区高清视频 | 99re66热这里只有精品8| 亚洲福利一区| 国产乱码精品一区二区三区av| 久久九九全国免费| 精品久久久久久国产91| 日韩欧美国产不卡| www国产91| 四虎海外永久免费网址| 成年人免费影院| 日韩美女一级视频| 2021中文字幕在线| 999久久精品| 夜间精品视频| 国产在线视视频有精品| 国产精品护士白丝一区av| 一本久久综合亚洲鲁鲁五月天 | 中文字幕欧美一区二区| 国产原厂视频在线观看| 精品久久福利| 成人羞羞网站入口免费| 久久久久久免费精品| 97精品一区二区三区| 中国女人内谢25xxxx免费视频| 国产视频资源| 哥也色在线视频| 亚洲一区二区av| 97精品中文字幕| 久久99精品国产91久久来源| 国产精品乱码妇女bbbb| 欧美视频一区二区三区四区| 中文字幕精品av| 欧美另类黑人巨大videos| 爱爱永久免费视频| 超碰个人在线| 一级毛片精品毛片| 在线精品一区| 播五月开心婷婷综合| 亚洲国产成人av网| 亚洲韩国青草视频| 美女把尿口扒开给男人桶视频| chinesemodel无套啪啪| 77导航福利在线| 精品女同一区二区三区在线观看| 青青草成人影院| 激情六月婷婷久久| 一区二区三区精密机械公司| 亚洲成在人线av| 2025国产精品视频| 99在线免费观看| 欧美24videosex性欧美| 全国精品免费看| 丝袜美腿高跟呻吟高潮一区| 国产精品色哟哟| 欧美一级片在线观看| 国产69精品99久久久久久宅男| 爱爱视频网站| av大片在线看| 日韩一区免费| 国产日韩欧美三区| 国产精品美女久久久久久久久久久| 欧美人xxxx| 欧美精品久久久久a| 加勒比在线日本| 丰乳肥臀在线| 国产亚洲精品拍拍拍拍拍| 四虎成人免费| 中文字幕在线网| 黄瓜视频成人app免费| 亚洲美女视频| 91久色porny| 欧美日韩黄色影视| 久久久综合av| 女人体1963| 国产综合av| 欧美另类综合| 国产精品美女一区二区三区| 亚洲成人网av| 国产视频每日更新| 日韩黄色影院| 亚洲激情77| 国产盗摄视频一区二区三区| 日本道在线观看一区二区| 欧美精品在线极品| 国产视频一二区| 色豆豆成人网| 999亚洲国产精| 亚洲免费在线视频一区 二区| 亚洲精品天天看| freee性欧美| 国产鲁鲁视频在线观看特色| 久久99高清| 成人午夜视频在线观看| 欧美另类videos死尸| 欧美亚洲第一页| 午夜视频在线观看韩国| 国产精品亚洲一区二区在线观看| 日韩精彩视频在线观看| 亚洲超碰97人人做人人爱| 久久影视电视剧免费网站| 国内av免费| 四虎影视精品永久在线观看| 久久精品人人| 婷婷开心激情综合| 欧美日本高清视频| 香港三级经典全部种子下载| 欧美91在线|欧美| 久久免费高清| 日韩欧美国产成人| 精品视频一区三区九区| 欧美日韩亚洲激情| 97国产精品视频| 欧美日韩在线中文字幕| 久久国产精品免费精品3p| 国产激情精品久久久第一区二区| 欧美日韩一本到| 日韩在线一二三| 免费看a在线观看| 日本一区二区高清不卡| 欧美国产日韩一二三区| 亚洲人成网7777777国产| av网站网址| 欧美成人三级| 另类调教123区| 欧美视频自拍偷拍| 四虎www成人影院观看| 麻豆视频在线| 999国产精品| 欧美国产精品久久| 国产亚洲a∨片在线观看| 色琪琪原网站亚洲香蕉| 色噜噜成人av在线| 国产精品亚洲一区二区三区妖精| 91精品国产麻豆国产自产在线| 国产精品久久久久久久泡妞| 国产v日韩v欧美v| 亚洲一区二区成人| 在线观看亚洲精品| 欧美国产中文| 国产在线精彩视频| 久久高清免费观看| 欧美专区日韩专区| 国产精品入口麻豆免费观看| 男人久久天堂| 日韩国产欧美在线视频| 欧美日韩一区二区在线观看视频 | 久色视频在线观看| 四虎av在线| 国产精品一二| 精品视频1区2区| 99综合精品久久| 综合久久2023| 久久精品国产网站| 欧美zozozo| 先锋影音成人资源| 成人性生交大片免费看中文视频| 久久综合九色综合久久久精品综合| 亚洲热线99精品视频| 国产在线制服美女| 视频一区中文| 一区二区三区在线播| 91国在线精品国内播放| 在线h片观看| 亚洲永久网站| 欧美精品 日韩| 福利片在线播放| 亚洲成人影音| 国产欧美日韩卡一| 欧美日韩国产va另类| 91伦理视频在线观看| 激情欧美一区二区三区| 91久久久免费一区二区| 羞羞视频网页| 99视频这里有精品| 久久亚洲捆绑美女| 久久综合亚洲社区| 久久久久久国产精品免费无遮挡| 91久久夜色精品国产九色| 欧美老女人在线| 成人天堂入口网站| 天美av一区二区三区久久| 亚洲日本一区二区| 影音先锋中文在线播放| 中文在线а√在线8| 国产成人在线色| 一区二区三区国产视频| 国产香蕉在线| 99成人在线| 日韩欧美一区二区视频| 免费黄色网页| 久久国产精品成人免费观看的软件| 午夜精品福利在线| 91九色porn蝌蚪| 日韩中文字幕无砖| 国产精品每日更新在线播放网址| 91爱视频在线| 成人性生交大片免费观看网站| 国产99久久久国产精品潘金网站| 一区二区欧美久久| 在线视频三区| 日欧美一区二区| 日韩精品久久久久久久玫瑰园 | 亚洲黄色免费| 日韩欧美在线影院| 在线人体午夜视频| 国产综合视频| 日韩精品一区二区三区中文不卡| 婷婷丁香六月天| 91精品婷婷色在线观看| 欧美日韩一区在线观看| 2019中文字幕视频| 国产精品精品| 欧美日韩成人激情| 在线视频网站| 欧美特黄一级| 精品少妇一区二区三区在线播放 | 欧美极品美女视频| 亚洲大肥女ass| av久久网站| 中文天堂在线一区| 欧美三级超在线视频| 欧美二区观看| 亚洲精品国产无套在线观| 国产精品美女一区二区视频| 在线视频亚洲欧美中文| 亚洲一区二区精品久久av| 日批视频网站| 国内精品久久久久久久久电影网| 91久久线看在观草草青青 | av影片在线一区| 欧美最猛性xxxxx直播| 69av二区| 欧美精品91| 精品久久久久久久久久久久包黑料| 一级片在线免费看| 国产精品婷婷| 国产亚洲人成a一在线v站| sm国产在线调教视频| 国产成人免费在线| 性视频1819p久久| 久久爱.com| 一区二区三区久久久| 九九九热视频| 99久久亚洲精品蜜臀| 日韩精品在线网站| 91视频在线观看| 国产精品亚洲一区二区三区在线| 久久免费观看视频| 成人国产在线| 亚洲精品成人精品456| se视频在线观看| 伊人情人综合网| 亚洲精品久久久久久下一站| 黄视频网站在线| youjizz久久| 性欧美videos白嫩| 欧美jizz19性欧美| 欧美视频在线播放| 日色在线视频| 精品在线免费视频| 97国产精品视频人人做人人爱| 欧美黄色a视频| 香蕉久久一区二区不卡无毒影院 | 久久综合色8888| 最新亚洲精品国自产在线观看| 亚洲一区二区三区在线免费| 欧美日韩一二三四五区| 一级毛片国产| 日日嗨av一区二区三区四区| 久久av红桃一区二区小说| 国产另类xxxxhd高清| 一区二区三区加勒比av| av免费播放| 一区二区高清| 久久香蕉频线观| 欧美高清影院| 精品久久在线播放| 天海翼一区二区三区免费| 秋霞影院一区二区| 97精品伊人久久久大香线蕉| xxxx日韩| 欧美日韩中字一区| 91欧美在线视频| 97久久精品人人做人人爽| 国产大学生粉嫩无套流白浆| 色135综合网| 精品亚洲夜色av98在线观看| heyzo在线| 亚洲麻豆国产自偷在线| www.成人精品免费网站青椒| 久久久国产亚洲精品| 欧美黄色成人网| 97色成人综合网站| 91麻豆精品久久久久蜜臀| 免费日本一区二区三区视频| 久久精品亚洲一区二区三区浴池| 日日骚.com| 亚洲欧洲视频| 欧美大片在线看免费观看| 亚洲综合影院| 欧美一级艳片视频免费观看| 肉体视频在线| 综合婷婷亚洲小说| 国产videos| 视频一区免费在线观看| 欧美一级电影久久| 国产精品美女久久久久久不卡| 亚洲国模精品私拍| 三级成人黄色影院| 色综合一区二区三区| 成人免费在线电影| 国产亚洲精品免费| 奇米777影视成人四色| 蜜桃久久久久久久| 欧美成人亚洲高清在线观看| 国产精品黑丝在线播放| 色香阁99久久精品久久久| 国产午夜精品一区在线观看| 欧美精品一卡两卡| 伦理av在线| 亚洲va欧美va国产va天堂影院| 邻居大乳一区二区三区|