The bright plumage of many male birds was thought to have evolved to attract females.
许多雄鸟的鲜艳羽毛被认为是为吸引雌鸟而进化来的。
For example, the ostrich has plumage that is so constructed that the feathers are long but not too dense.
例如，鸵鸟的羽毛构造使它的羽毛长而不密。
Emu is a large Australian flightless bird, similar to the ostrich but with three-toed feet and grey or brown plumage.
鸸鹋是一种大型的澳大利亚不会飞的鸟，类似于鸵鸟，但是有三趾的脚和灰色或棕色的羽毛。
A male bird of paradise may put himself in the limelight by displaying his spectacular plumage in the best stage setting to attract a female.
一只雄性天堂鸟可能会在最佳的场合中展示他华美的羽毛使自己成为关注的焦点，从而吸引雌性。
A crowlike Old World bird of the genus Pyrrhocorax has black plumage and red legs.
红嘴山鸦东半球的一种似乌鸦的山鸦属鸟类，有黑色羽毛和红色的腿部。
Their bright plumage and beautiful songs delight us.
它们明艳的羽毛和优美的叫声给我们视听上的享受。
These birds are famed for their dazzling plumage.
极乐鸟因华丽耀眼的羽毛而闻名。
Have you seen the brightly-coloured plumage of tropical birds?
你见过热带鸟类色彩斑斓的羽毛吗？
The swallow and the Crow had a contention about their plumage.
燕子与乌鸦争吵谁最美丽。
Have you seen the bright ly-coloured plumage of tropical birds?
你见过热带鸟类色彩斑斓的羽毛吗？
These birds are famed for their dazzling plumage and courtship displays.
极乐鸟因华丽耀眼的羽毛和求偶时的殷勤而闻名。
Raven saw a Swan and desired to secure for himself the same beautiful plumage.
一只乌鸦看见一只天鹅便渴望自己拥有跟天鹅一样漂亮的羽毛。
Raven saw a Swan and desired to secure for himself the same beautiful plumage.
乌鸦非常羡慕天鹅洁白漂亮的羽毛。
A Raven saw a Swan, and desired to secure for himself a plumage of like beauty.
一只乌鸦看见一只天鹅，便希望自己有能拥有一样好看的羽毛。
These birds are best known for their loud cackles, four-toed feet, and brilliant plumage.
这些鸟闻名于它们大声的咯咯声，四趾的脚和鲜艳的羽毛。
The wings of the ostrich flap joyously: Are they the pinion and plumage of lovingkindness?
鸵鸟的翅膀欢然展翅，是显慈爱的翎毛和羽毛么？
Feathers don't last forever. So birds periodically shed their plumage and then sprout replacements.
鸟的羽毛不会永远光洁如新，鸟类必须周期性的进行换羽，长出新的羽毛。
Scientists say the find shows that key features of the plumage were present quite early on in penguin evolution.
科学家表示这项发现表明羽毛的特征在企鹅进化的早期就已经存在。
The peacock has to accept his raucous voice but he can still 'strut his stuff' and display his beautiful plumage.
孔雀得要承认自己声音是沙哑的，不过，他照样还是可以去“炫耀”，去展示出自己美丽的羽毛。
The sparrow is quite familiar to human beings. It has a brownish or grayish plumage and includes various species.
麻雀是很常见的鸟类，羽毛呈浅棕色或浅灰色，种类很多。
The chickens are characterized by white plumage, single comb, red ear-lobes with white spots, yellow beak and shanks.
成都白鸡全身羽毛白色，单冠，耳叶红色带有白斑，喙、胫黄色。
A common North American sparrow (Melospiza melodia) having streaked brownish plumage and noted for its melodious song.
一种常见的北美雀鸟(歌雀)，长有条纹状、褐色的羽毛，以其宛转动听的歌声著称。
In the world's temperate zones, where drab plumage is the norm, this kingfisher, unlike its North American cousins, bedazzles.
在温带，通常的鸟类羽毛都是灰褐色的，而翠鸟不同于它的那些北美亲属，它美得让人眼花缭乱。
The clearest and most striking of the specimens can be seen to have four wings, extensive plumage and profusely feathered feet.
其中最清晰、最引人注目的化石标本上，可依稀看出它有四个翅膀、全身羽毛分布广泛、连脚上都被有羽毛。
Because many spring birds are in their breeding plumage, it can be easier to identify them based on colors and feather patterns.
因为很多鸟在春天都换上了繁殖羽，根据颜色和羽毛图案来识别鸟种将变得更容易。
Despite its beautiful plumage, the bird has never been displayed in zoos because of its scarcity and inability to adapt to new environments.
由于数量稀少，环境适应性差，目前国内外动物园中还未见饲养展出。
The birds with their plumage and their notes are in harmony with the flowers, but what youth or maiden conspires with the wild luxuriant beauty of Nature?
鸟儿连同它们的羽毛和乐音，是和花朵谐和的，可是有哪个少年或少女，是同大自然的粗旷华丽的美协调的呢？
The birds with their plumage and their notes are in harmony with the flowers, but what youth or maiden conspires with the wild luxuriant beauty of Nature?
鸟儿连同它们的羽毛和乐音，是和花朵谐和的，可是有哪个少年或少女，是同大自然的粗旷华丽的美协调的呢？
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