XXII. NESTS AND NO NESTS.

Strolling across the moor¹ in the sunshine to-day, past the lonely pine where the night-jar sits crooning to his lady-love in the twilight², I came suddenly across his grey mate herself, and saw her flutter up sleepily in dazed surprise from the bare ground where she was sitting. As she flapped her mottled wings and sailed slowly away, like a blinking owl³ disturbed in the daytime, I noticed that I had lighted unawares upon her nest, or rather, her eggs, for she lays them on the open, without bed of any sort. I left them untouched, for I am no collector. A few minutes later, I came abreast⁴ of the low cliff where the sand-martins have established their twittering colony. The soft yellow sandstone that forms the cutting is honey-combed with their tunnels; and as I leaned on my stick and looked, I saw the busy brown birds gliding⁵ in and out, with their long curved flight, and carrying back mouthfuls of gnats⁶ and mayflies to their fledgelings in the burrows⁷. It was beautiful to watch them swooping⁸ in great arcs over the gorse and bracken, and then darting¹⁰ straight, with unerring accuracy, to the mouth of their tunnels. They alight at the very door with all the skill of born pilots, never missing or overshooting the mark by one inch, but steering¹¹ upon it so truly that they look as though failure or miscalculation were impossible.

These two little episodes coming together set me thinking; ’tis a bad habit one indulges in when one walks too much alone in the open. In towns one doesn’t think, because the shop-windows, and the horses, and the noise, and the people, and the omnibuses distract one; but in the country, one gives way a great deal too readily to what Plato calls the “divine disease” of thinking. I began to philosophize. How curious, I said to myself, that we have but five kinds of bird in England that hawk¹² on the wing after insects in the open; and of all those five, not one builds a proper respectable nest, woven of twigs¹³ and straws, like a sparrow or a robin¹⁴! Every one of them has some peculiar¹⁵ little fancy of his own—goes in for some individual freak of originality¹⁶. The night-jar, which is the simplest and earliest in type of the group, lays its eggs on the bare ground, and rises superior in its Spartan¹⁷ simplicity¹⁸ to such petty luxuries as beds and bedding. The swift, that ecclesiologically-minded bird, which loves the chief seats in the synagogue, the highest pinnacles¹⁹ of tower or steeple, gums together a soft nest of floating thistle-down and feathers, by means of a sticky secretion²⁰ from its own mouth, distilled²¹ in the last resort from the juices of insects. The swallow and the house-martin, again, make domed²² mud huts, and line them inside with soft floating material. Finally, the sand-martin excavates²³ with its bill the soft sandstone of cliffs or roadside cuttings, and strews²⁴ a bed within for its callow young of cotton-grass and dandelion parachutes.

Why this curious variety among themselves, and this equally curious divergence²⁵ from the common practice of bird-kind in general? Clearly, thought I, it must bear some definite relation to the habits and manners of the birds which exhibit it. Let me think what it means. Aha, aha, eureka! I have found it! The insect-hawking²⁶ birds are not a natural group; by descent they have nothing at all to do with one another. Closely as the swift resembles the swallow in form, in flight, in shape of bill, in habits and manners, we now know that the swift is a specialized²⁷ woodpecker, while the swallow and the martins are specialized sparrows. (I use both words, bien entendu, in quite their widest and most Pickwickian evolutionary²⁸ acceptation.) The swift and the night-jar belong to one great family of birds; the swallow, the house-martin, and the sand-martin to another. The likeness²⁹ in form and in mode of flight has been brought about by similarity in their style of living. Two different birds of two different types both took, ages since, to hawking after flies and midges in the open air. Each group was thus compelled to acquire long and powerful wings, a light and airy body, a good steering tail, a wide gape³⁰ of mouth, and a rapid curved flight, so as to swoop⁹ down upon and catch its petty prey³¹ unsuspected. So, in the long run, the two types which hawk most in the open, the swifts and the swallows, have grown so like that only by minute anatomical differences can we refer the remoter ancestry³² of one species to the woodpeckers and humming-birds, and the remoter ancestry of the other to the tits and sparrows.

How does their manner of life affect their mode of nesting, however? Indirectly³³, in this way. Birds that live largely off seeds and fruits and hard-shelled beetles³⁴, have hard short beaks³⁵ to grind their food with, and sit much in thickets³⁶, scrub, or hedgerows. But birds that hawk on the wing after small soft flies must have wide soft bills, and a gaping³⁷ mouth; they can hardly perch³⁸ at all on trees or bushes, and their feet are too weak to be of much use for walking. Indeed, if a swift once alights on the ground, he can scarcely get up again, so difficult is it for the long wings to work in a narrow space, and so slight a power of jumping have the feeble little legs. Hence it follows that birds of the hedgerow type can readily build nests of twigs and straws, which they gather as they perch, or seek on the ground; and they are enabled to weave them with their hard bills and active feet; while birds of the hawking type cannot pick up sticks or gather straws on the ground, and have beaks quite unadapted for dealing³⁹ with such intractable materials. The consequence is they have been compelled to find out each some new plan for itself, and to build their nest out of such stray material as their habits permit them.

The night-jar, a stranded⁴⁰ nocturnal bird of early type, with very few modern improvements and additions, solves the problem in the easiest and rudest way by simply going without a nest at all, and laying her eggs unprotected in the open. Nocturnal creatures, indeed, are, to a great extent, the losers in the struggle for existence; they always retain many early and uncivilized ways, if I may speak metaphorically⁴². They are the analogues⁴³ of the street arabs who sleep in Trafalgar Square under shelter of a newspaper. The sand-martin, an earlier type than the swallow or the house-martin, burrows in sandstone cliffs, which are pre-human features, though man’s roads and railways have largely extended his field of enterprise. But the house-martin and the swallow, later and far more civilized⁴¹ developments, have learned to take advantage of our barns and houses; they nest under the eaves; and being largely water-haunters, skimming lightly over the surface of ponds and lakes, they have naturally taken advantage of the mud at the edges as a convenient building material. Last of all, the soaring swift, the most absolutely a?rial type of the entire group, unable to alight on the ground at all, has acquired the habit of catching⁴⁴ cottony seeds, and thistle-down, and floating feathers in his mouth as he flies, and gumming them together into a mucilaginous nest with his own saliva⁴⁵. The Oriental sea-swifts have no chance of finding even such flying materials among their caves and cliffs, and they have consequently been driven into erecting⁴⁶ nests entirely⁴⁷ of their own inspissated saliva, without any basis of down or feathers. These are the famous edible⁴⁸ birds’-nests of the Chinese; they look like gelatine, and they make excellent soup, somewhat thick and gummy.

1 moor   

n.荒野，沼泽；vt.(使)停泊；vi.停泊

参考例句：

• I decided to moor near some tourist boats.我决定在一些观光船附近停泊。
• There were hundreds of the old huts on the moor.沼地上有成百上千的古老的石屋。

2 twilight   

n.暮光，黄昏；暮年，晚期，衰落时期

参考例句：

• Twilight merged into darkness.夕阳的光辉融于黑暗中。
• Twilight was sweet with the smell of lilac and freshly turned earth.薄暮充满紫丁香和新翻耕的泥土的香味。

3 owl   

n.猫头鹰，枭

参考例句：

• Her new glasses make her look like an owl.她的新眼镜让她看上去像只猫头鹰。
• I'm a night owl and seldom go to bed until after midnight.我睡得很晚，经常半夜后才睡觉。

4 abreast   

adv.并排地；跟上(时代)的步伐，与…并进地

参考例句：

• She kept abreast with the flood of communications that had poured in.她及时回复如雪片般飞来的大批信件。
• We can't keep abreast of the developing situation unless we study harder.我们如果不加强学习，就会跟不上形势。

5 gliding   

v. 滑翔 adj. 滑动的

参考例句：

• Swans went gliding past. 天鹅滑行而过。
• The weather forecast has put a question mark against the chance of doing any gliding tomorrow. 天气预报对明天是否能举行滑翔表示怀疑。

6 gnats   

n.叮人小虫( gnat的名词复数 )

参考例句：

• He decided that he might fire at all gnats. 他决定索性把鸡毛蒜皮都摊出来。 来自辞典例句
• The air seemed to grow thick with fine white gnats. 空气似乎由于许多白色的小虫子而变得浑浊不堪。 来自辞典例句

7 burrows   

n.地洞( burrow的名词复数 )v.挖掘（洞穴），挖洞( burrow的第三人称单数 )；翻寻

参考例句：

• The intertidal beach unit contains some organism burrows. 潮间海滩单元含有一些生物潜穴。 来自辞典例句
• A mole burrows its way through the ground. 鼹鼠会在地下钻洞前进。 来自辞典例句

8 swooping   

俯冲，猛冲( swoop的现在分词 )

参考例句：

• The wind were swooping down to tease the waves. 大风猛扑到海面上戏弄着浪涛。
• And she was talking so well-swooping with swift wing this way and that. 而她却是那样健谈--一下子谈到东，一下子谈到西。

9 swoop   

n.俯冲，攫取；v.抓取，突然袭击

参考例句：

• The plane made a swoop over the city.那架飞机突然向这座城市猛降下来。
• We decided to swoop down upon the enemy there.我们决定突袭驻在那里的敌人。

10 darting   

v.投掷，投射( dart的现在分词 )；向前冲，飞奔

参考例句：

• Swallows were darting through the clouds. 燕子穿云急飞。 来自《现代英汉综合大词典》
• Swallows were darting through the air. 燕子在空中掠过。 来自辞典例句

11 steering   

n.操舵装置

参考例句：

• He beat his hands on the steering wheel in frustration. 他沮丧地用手打了几下方向盘。
• Steering according to the wind, he also framed his words more amicably. 他真会看风使舵，口吻也马上变得温和了。

12 hawk   

n.鹰，骗子；鹰派成员

参考例句：

• The hawk swooped down on the rabbit and killed it.鹰猛地朝兔子扑下来,并把它杀死。
• The hawk snatched the chicken and flew away.老鹰叼了小鸡就飞走了。

13 twigs   

细枝，嫩枝( twig的名词复数 )

参考例句：

• Some birds build nests of twigs. 一些鸟用树枝筑巢。
• Willow twigs are pliable. 柳条很软。

14 robin   

n.知更鸟，红襟鸟

参考例句：

• The robin is the messenger of spring.知更鸟是报春的使者。
• We knew spring was coming as we had seen a robin.我们看见了一只知更鸟，知道春天要到了。

15 peculiar   

adj.古怪的，异常的；特殊的，特有的

参考例句：

• He walks in a peculiar fashion.他走路的样子很奇特。
• He looked at me with a very peculiar expression.他用一种很奇怪的表情看着我。

16 originality   

n.创造力，独创性；新颖

参考例句：

• The name of the game in pop music is originality.流行音乐的本质是独创性。
• He displayed an originality amounting almost to genius.他显示出近乎天才的创造性。

17 spartan   

adj.简朴的，刻苦的；n.斯巴达；斯巴达式的人

参考例句：

• Their spartan lifestyle prohibits a fridge or a phone.他们不使用冰箱和电话，过着简朴的生活。
• The rooms were spartan and undecorated.房间没有装饰，极为简陋。

18 simplicity   

n.简单，简易；朴素；直率，单纯

参考例句：

• She dressed with elegant simplicity.她穿着朴素高雅。
• The beauty of this plan is its simplicity.简明扼要是这个计划的一大特点。

19 pinnacles   

顶峰( pinnacle的名词复数 )； 顶点； 尖顶； 小尖塔

参考例句：

• What would be the pinnacles of your acting and music? 对你而言什麽代表你的演技和音乐的巅峰？
• On Skye's Trotternish Peninsula, basalt pinnacles loom over the Sound of Raasay. 在斯开岛的特洛登尼许半岛，玄武岩尖塔俯瞰着拉塞海峡。

20 secretion   

n.分泌

参考例句：

• Is there much secretion from your eyes?你眼里的分泌物多吗？
• In addition,excessive secretion of oil,water scarcity are also major factors.除此之外，油脂分泌过盛、缺水也都是主要因素。

21 distilled   

adj.由蒸馏得来的v.蒸馏( distil的过去式和过去分词 )；从…提取精华

参考例句：

• The televised interview was distilled from 16 hours of film. 那次电视采访是从16个小时的影片中选出的精华。 来自《简明英汉词典》
• Gasoline is distilled from crude oil. 汽油是从原油中提炼出来的。 来自《简明英汉词典》

22 domed   

adj. 圆屋顶的, 半球形的, 拱曲的 动词dome的过去式和过去分词形式

参考例句：

• I gazed up at the domed ceiling arching overhead. 我抬头凝望着上方弧形的穹顶。
• His forehead domed out in a curve. 他的前额呈弯曲的半球形。

23 excavates   

v.挖掘( excavate的第三人称单数 )；开凿；挖出；发掘

参考例句：

• Biblical criticism excavates the various deposits that have been gathered in successive layers in these writings. “圣经”考证把向来积聚于这些作品的各层中的各种堆积物掘开。 来自辞典例句
• Why excavates K-V5's archaeology one not to die a violent death? 为什么发掘K-V5的考古者们没有一个死于非命呢？ 来自互联网

24 strews   

v.撒在…上( strew的第三人称单数 )；散落于；点缀；撒满

参考例句：

• MOUSE, n. An animal which strews its path with fainting women. 这种动物通常用昏倒的女人点缀它走过的路。 来自互联网

25 divergence   

n.分歧，岔开

参考例句：

• There is no sure cure for this transatlantic divergence.没有什么灵丹妙药可以消除大西洋两岸的分歧。
• In short,it was an age full of conflicts and divergence of values.总之，这一时期是矛盾与价值观分歧的时期。

26 hawking   

利用鹰行猎

参考例句：

• He is hawking his goods everywhere. 他在到处兜售他的货物。
• We obtain the event horizon and the Hawking spectrumformula. 得到了黑洞的局部事件视界位置和Hawking温度以及Klein—Gordon粒子的Hawking辐射谱。

27 specialized   

adj.专门的，专业化的

参考例句：

• There are many specialized agencies in the United Nations.联合国有许多专门机构。
• These tools are very specialized.这些是专用工具。

28 evolutionary   

adj.进化的；演化的，演变的；[生]进化论的

参考例句：

• Life has its own evolutionary process.生命有其自身的进化过程。
• These are fascinating questions to be resolved by the evolutionary studies of plants.这些十分吸引人的问题将在研究植物进化过程中得以解决。

29 likeness   

n.相像，相似（之处）

参考例句：

• I think the painter has produced a very true likeness.我认为这位画家画得非常逼真。
• She treasured the painted likeness of her son.她珍藏她儿子的画像。

30 gape   

v.张口，打呵欠，目瞪口呆地凝视

参考例句：

• His secretary stopped taking notes to gape at me.他的秘书停止了记录，目瞪口呆地望着我。
• He was not the type to wander round gaping at everything like a tourist.他不是那种像个游客似的四处闲逛、对什么都好奇张望的人。

31 prey   

n.被掠食者，牺牲者，掠食；v.捕食，掠夺，折磨

参考例句：

• Stronger animals prey on weaker ones.弱肉强食。
• The lion was hunting for its prey.狮子在寻找猎物。

32 ancestry   

n.祖先，家世

参考例句：

• Their ancestry settled the land in 1856.他们的祖辈1856年在这块土地上定居下来。
• He is an American of French ancestry.他是法国血统的美国人。

33 indirectly   

adv.间接地，不直接了当地

参考例句：

• I heard the news indirectly.这消息我是间接听来的。
• They were approached indirectly through an intermediary.通过一位中间人，他们进行了间接接触。

34 beetles   

n.甲虫( beetle的名词复数 )

参考例句：

• Beetles bury pellets of dung and lay their eggs within them. 甲壳虫把粪粒埋起来，然后在里面产卵。 来自《简明英汉词典》
• This kind of beetles have hard shell. 这类甲虫有坚硬的外壳。 来自《现代汉英综合大词典》

35 beaks   

n.鸟嘴( beak的名词复数 )；鹰钩嘴；尖鼻子；掌权者

参考例句：

• Baby cockatoos will have black eyes and soft, almost flexible beaks. 雏鸟凤头鹦鹉黑色的眼睛是柔和的，嘴几乎是灵活的。 来自互联网
• Squid beaks are often found in the stomachs of sperm whales. 经常能在抹香鲸的胃里发现鱿鱼的嘴。 来自互联网

36 thickets   

n.灌木丛( thicket的名词复数 )；丛状物

参考例句：

• Small trees became thinly scattered among less dense thickets. 小树稀稀朗朗地立在树林里。 来自辞典例句
• The entire surface is covered with dense thickets. 所有的地面盖满了密密层层的灌木丛。 来自辞典例句

37 gaping   

adj.口的；张口的；敞口的；多洞穴的v.目瞪口呆地凝视( gape的现在分词 )；张开，张大

参考例句：

• Ahead of them was a gaping abyss. 他们前面是一个巨大的深渊。
• The antelope could not escape the crocodile's gaping jaws. 那只羚羊无法从鱷鱼张开的大口中逃脱。 来自《简明英汉词典》

38 perch   

n.栖木，高位，杆；v.栖息，就位，位于

参考例句：

• The bird took its perch.鸟停歇在栖木上。
• Little birds perch themselves on the branches.小鸟儿栖歇在树枝上。

39 dealing   

n.经商方法，待人态度

参考例句：

• This store has an excellent reputation for fair dealing.该商店因买卖公道而享有极高的声誉。
• His fair dealing earned our confidence.他的诚实的行为获得我们的信任。

40 stranded   

a.搁浅的，进退两难的

参考例句：

• He was stranded in a strange city without money. 他流落在一个陌生的城市里， 身无分文，一筹莫展。
• I was stranded in the strange town without money or friends. 我困在那陌生的城市，既没有钱，又没有朋友。

41 civilized   

a.有教养的，文雅的

参考例句：

• Racism is abhorrent to a civilized society. 文明社会憎恶种族主义。
• rising crime in our so-called civilized societies 在我们所谓文明社会中日益增多的犯罪行为

42 metaphorically   

adv. 用比喻地

参考例句：

• It is context and convention that determine whether a term will be interpreted literally or metaphorically. 对一个词的理解是按字面意思还是隐喻的意思要视乎上下文和习惯。
• Metaphorically it implied a sort of admirable energy. 从比喻来讲，它含有一种令人赞许的能量的意思。

43 analogues   

相似物( analogue的名词复数 )； 类似物； 类比； 同源词

参考例句：

• A vegetarian gets protein not from meat but from its analogues. 素食者所摄取的蛋白质不是来自肉类而是来自近似肉类的食物。
• Moreover, it tends to foster the human qualities that I admire most-courage and its analogues. 不但如此，它还能培养我最景仰的那些德性-勇敢和诸如此类的东西。

44 catching   

adj.易传染的，有魅力的，迷人的，接住

参考例句：

• There are those who think eczema is catching.有人就是认为湿疹会传染。
• Enthusiasm is very catching.热情非常富有感染力。

45 saliva   

n.唾液，口水

参考例句：

• He wiped a dribble of saliva from his chin.他擦掉了下巴上的几滴口水。
• Saliva dribbled from the baby's mouth.唾液从婴儿的嘴里流了出来。

46 erecting   

v.使直立，竖起( erect的现在分词 )；建立

参考例句：

• Nations can restrict their foreign trade by erecting barriers to exports as well as imports. 象设置进口壁垒那样，各国可以通过设置出口壁垒来限制对外贸易。 来自辞典例句
• Could you tell me the specific lift-slab procedure for erecting buildings? 能否告之用升板法安装楼房的具体程序？ 来自互联网

47 entirely   

ad.全部地，完整地；完全地，彻底地

参考例句：

• The fire was entirely caused by their neglect of duty. 那场火灾完全是由于他们失职而引起的。
• His life was entirely given up to the educational work. 他的一生统统献给了教育工作。

48 edible   

n.食品，食物；adj.可食用的

参考例句：

• Edible wild herbs kept us from dying of starvation.我们靠着野菜才没被饿死。
• This kind of mushroom is edible,but that kind is not.这种蘑菇吃得，那种吃不得。