通常雄鸟体形较大，喙较短。
雄鸟喙呈红色，有别于雌鸟。
The male bird is distinguished from the female by its red beak.
雄鸟黄色的喙是与雌鸟相区别的主要特征。
雄鸟喙上有一个红点。
象牙喙啄木鸟不像鸟那样大。它的大小和乌鸦差不多，但更华丽。
The ivory-billed woodpecker is not large, as birds go. It is about the size of a crow, but flashier.
从所有种类平均来看，有16%的喙长差异原因可以用温度来解释。
Averaged across all species, temperature explained 16 per cent of beak size variation.
在一个关于生存的不同寻常的故事中，这只匈牙利鹳装上人工喙后，就重获新生。
In a remarkable story of survival, this Hungarian stork was given a new lease on life after being fitted with an artificial prosthetic beak.
如果托哥巨嘴鸟是在寒冷的爱尔兰进化而来的，它那令人印象深刻的喙部就会比现在小得多了。
If the toco toucan had evolved in chilly Ireland, its impressive bill would have been much more modest.
它有着粗壮的腿、利爪及长有力的长脖子。它的躯干覆盖着毛发状的羽毛，它的喙就像一个长矛。
It had massive legs, taloned claws, and a long, powerful neck. Its body was covered in bristling, hair-like feathers, and its beak resembled a spear.
去年，加拿大安大略布鲁克大学的格伦·塔特索尔发现，托哥巨嘴鸟身体中高达60%的体温都会通过其喙部流失。
Last year Glenn Tattersall of Brock University in Ontario, Canada, found the toco toucan loses up to 60 per cent of its body heat through its beak.
栗嘴巨嘴鸟很大的喙占据了它身体的三分之一长度，但由于其为蜂巢式结构，它并没有看起来那么重。
The giant bill of the chestnut-mandibled toucan makes up a third of the bird's body length, but thanks to a honeycomb structure, it's not as heavy as it looks.
鹦鹉们被分派了一项对智力要求很高的任务，它们要协调爪子和喙，将一份拴在绳子上的零食拉到它们的喙上。
The parrots were given the intellectually demanding task of pulling a snack on a string up to their beaks, using a co-ordinated combination of claws and beak.
随后，乌鸦要不就无视了该对象，要不就把工具丢到一边，然后用喙猛啄该对象——这和用工具觅食有很大不同。
Subsequently, the crows either ignored the object or dropped the tool and pecked at the object—which is very different from using the tool to get access to food.
李奇曼：那是它们的“喙”。
鸟用喙整理它的羽毛。
用合成松脂制成的鸟喙也许能让这只鸟重返野外生存。
The beak, which was created from synthetic resin, may allow the bird to return to life in the wild.
新的研究为这种喙发现了至少一种功能：调节体温。
New research has found at least one practical function: temperature regulation.
羽色、特殊标记以及鸟喙形状等特征在鸟类识别中有很大作用。
Physical characteristics that are important in bird identification include colors, markings, and bill or beak.
德国慕尼黑海拉·布伦动物园。鹈鹕在午餐时间用长长的喙捕鱼。
Pelicans try to catch fish with their beaks during lunch time at the Hellabrunn zoo in Munich, Germany.
他们有时会用长喙衔些野草或者一块木头，转着圆圈，击打水面。
They also sometimes pick up weeds or a piece of wood with their beaks, twirl in a circle, and smash the object on the water.
它那很长的弯曲的喙就像一个探测器，可以在潜水中寻找到食物。
It uses its long curved bill, equipped with sensitive feelers, to probe for food in shallow waters.
对不同鸟类的观察越仔细，你对多种多样的鸟喙的了解就会更深入。
The more closely you begin to examine different birds, the more familiar you will become with the wide range of bills.
对不同鸟类的观察越仔细，你对多种多样的鸟喙的了解就会更深入。
The more closely you begin to examine different birds, the more familiar you will become with the wide range of bills.
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