疣鼻天鹅

由于疣鼻天鹅为单态性鸟，雌雄在外形上十分相似，很难直接判定性别，在繁殖育种时常会发生人为错配的现象。

Mute Swan is a monomorpHism bird , the males are in appearance very similar to the females , so it is difficult to directly determine the sex , the pHenomenon of the human mismatch occur frequently in breeding .

由民众投票选出的10个最终候选鸟分别是：知更鸟，翠鸟，仓鸮，蓝冠山雀，鹪鹩，画眉，海鹦，疣鼻天鹅，赤鸢和白尾鹞。

The 10 most popular birds which have been voted for the by the public are the robin , kingfisher , barn owl , blue tit , wren , blackbird , puffin , mute swan , red kite and hen harrier .

大天鹅，疣鼻天鹅东半球的一种叫声很高的天鹅（大天鹅）

An Old World swan ( Cygnus cygnus ) having a loud cry .

研究发现，疣鼻天鹅在繁殖期的行为时间分配存在明显的性别差异。

The study found that there are clear gender differences of Mute Swans in hatching period in the behaviors time budget and activity rhythm .

通过不同天气条件的比较，表明疣鼻天鹅不仅在行为时间分配上不同，而且不同性别在行为时间分配上也存在明显差异。

By comparison of different weather conditions , it was indicating that the Mute Swans had not only difference in behaviors time budget , but also exist significant differences between the female and the male .

英国所有的野生疣鼻天鹅都被认为是王室的财产，杀死它们是一种大不敬的行为。

The bird is believed to have been killed on Saturday evening . All wild mute swans in Britain are considered to be the property of the Crown and it is an offence to kill one .