1.

1. The Arkansas sighting was later challenged by ornithologists, who argued that it was impossible to rule out the more common pileated woodpecker.
    阿肯色州的发现后来被鸟类学家置疑，他们说很难排除那是一种很普通的红冠黑啄木鸟。

2. This is the website of the Association of Field Ornithologists.
    这是野外鸟类学家协会的网站。

3.

3. For example, in Europe alone, there are 20 million amateur ornithologists.
    例如，仅在欧洲，有20000000业余鸟类学家。

4. Description: This is the website of the Association of Field Ornithologists.
    网站描述：这是野外鸟类学家协会的网站。

5. One night our phone rang. It was one of the ornithologists.
    有天晚上，电话铃响了，是一个鸟类学家打来的。

6. 公共查询·英语单词大全

6. I like to think they are all descendants of those sixteen birds I saved from the vigilance of the ornithologists.
    一想到它们都是在鸟类学家警觉下我拯救的那16只火鸡的后代，我就感到高兴。

7. Ornithologists

7. That river, he says, is little known among ornithologists.
    他说，这条河很少有鸟类学家知道。

8. In those days, during the 1950s, the big concern of ornithologists in our area was the wild turkey.
    在50年代，我们这一地区鸟类学家最关心的是稀有的野火鸡。

9. Ornithologists在线翻译

9. AFO is a society of professional and amateur ornithologists dedicated to the scientific study and dissemination of information about birds in their natural habitats.
    该协会是一个专业的和业余的鸟类学家的学会，致力于鸟类及其自然生境的科学研究以及相关知识的传播。

10. Thanks to the efforts of the Xinqing Forestry Department, Xinqing Nature Reserve staff and the ornithologists.
    这是新青林业局、保护区工作人员和关心该保护区建设的专家学者们共同努力的结果。

11. It was extinction by dilution, and to the ornithologists it was just as tragic as the more dramatic demise of the passenger pigeon or the carolina parakeet
      对鸟类学家来说，这和北美候鸽或卡罗来纳长尾小鹦鹉大批大批地死亡同样悲惨。

12. The species was being degraded. It was extinction by dilution, and to the ornithologists it was just as tragic as the more dramatic demise of the passenger pigeon or the Carolina parakeet.
      混种将导致野火鸡灭绝；对鸟类学家来说，这和北美候鸽或卡罗来纳长尾小鹦鹉大批大批地死亡同样悲惨。

13. The ornithologists made Vs with their thumbs and forefingers, measuring angles.
      鸟类学家们用大拇指和食指构成V形量测角度。

14. It was extinction by dilution, and to the ornithologists it was just as tragic as the more dramatic demise of the passenger pigeon or the Carolina parakeet.
      对鸟类学家来说，这和北美候鸽或卡罗来纳长尾小鹦鹉大批大批地死亡同样悲惨。

15. danci.edu.pub

15. This is the webpage of the Auk Journal, which is published by the American Ornithologists''Union.
      这是《鸟类学》杂志的网页，由美国鸟类学家联合会出版。

16. Ornithologists

16. Early ornithologists, puzzled by the disappearance each winter of the local swallow population, suspected that the birds buried themselves in mud and hibernated.
      早期的鸟类学家，无法解释每到冬季时当地的燕子消失尽殆的现象，便怀疑它们把自己埋在烂泥中长梦过冬。

17. I closed my eyes then, and after a while the ornithologists drifted away, their pale faces bobbing up and down on the black wave of fever
      我当时闭着眼，过了片刻，那些鸟类学家逐渐离去，我发着烧，在昏睡中就得他们那苍白的脸在黑色浪涛里上下摆动。