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。
Our full - time ornithologists are professionally obliged to ensure that any measures to protect hong kong s bird life are based on the best possible information available 我们的专家都是全职雀鸟学家，他们紧遵专业操守，确保所有保护雀鸟的措施建基于现存最佳资料。
Ornithologists from the university of florida at gainesville and elsewhere devised a large - scale test of such corridors with eight sites in south carolina pine forests 美国弗罗里达大学根兹维分校的鸟类学家，在南卡罗来纳州松树林的八个区块用这样的走廊设计了大规模的实验。
One ornithologist had devised a formula to compute the ratio of domestic to pure - strain wild turkey in an individual bird by comparing the angle of flight at takeoff and the rate of acceleration 有个鸟类学家设计了一种计算公式，对家养火鸡和纯种野火鸡进行起飞角度和加速度的比较。
Birds are living longer and flying further , says a report by ornithologists . the british trust for ornithology ringed a record 881 , 920 birds in 2004 to study migration and longevity 据镜报1月3日报道，为了研究鸟的迁徙和寿命，英国鸟类学基金会于2004年对881900只鸟进行了跟踪研究。
This was much to the surprise of ornithologists because normally in april birds fly north towards their breeding grounds in korea . previously a maximum of only 4 individuals had been known to stay in hong kong for the summer 由于黑脸琵鹭通常于四月飞返韩国的繁殖地，从前最多亦只录得四头黑脸琵鹭留港，故此鸟类学家对于今年有多头幼鸟留港亦大感惊奇。
Ornithologists rely on bird - watchers to keep track of changing patterns of migration , astronomers have long profited from enthusiasts scanning the skies to spot new comets , and archaeologists benefit from amateurs ' finds 鸟类学家依赖于观鸟者们跟踪鸟群迁移而不断变化的方式，天文学家长久以来也从科学狂热者观视天空并发现新的彗星而受益匪浅，而动物学家也从业余爱好者的发现中受益。
