It can infect mammals and birds, but scientists know little about its effects on its victims.
它可以感染哺乳动物和禽类，但是科学家们对其影响受害者知之甚少。
So cold was it that even the animals and the birds did not know what to make of it.
实在是太冷了，连鸟兽们都不知该如何度过这寒夜了。
Birding is a great hobby and it can be enjoyable at any time of year if you are properly prepared for the season and you know where to find the birds.
观鸟是一项极好的爱好，若你在合适的季节准备，并且知道在哪里能发现鸟，观鸟将会使你在一整年的大部分时间感到愉快。
Yes, I know, it is still very cold, but soon the weather will turn warm, the birds will begin to sing and it will be time to shed those heavy down jackets.
是的，我知道，现在还很冷，但不久就会转暖的，鸟儿就要开始歌唱，而脱下厚重羽绒服的时刻就要来到了。
That night, I do not know who is driven and controlled by whom, only know that, he turned it into a singer, my Thorn Birds.
那一夜，不知道是谁套住了谁，只知道，他就这样成了歌手，我的荆棘鸟。
Looked at the rice birds, looked at my eyes, then looked at it the day of heavy rainfall, I would like to hesitate in a hesitant, but it may not know how much I hope it can stay.
鸟儿望望饭粒，望望我的眼，再望望这大雨滂沱的天，我想它在踟躇着，但它或许不知道，我是多么希望它可以留下来。
Is it a bird that goes away or an egg disappears, you know, I know, only birds don't know.
是鸟先消失还是蛋先消失，你知道，我知道，只有鸟不知道。
It was named by us and if it is true or not, only birds themselves know about it.
这个名称是我们人类强加给这些鸟儿们的，真实与否只有小鸟们自己知道。
The sun is streaming in through the open window, the birds are chirping, and yet somehow, why it is I don't know, the room seems more barren and poverty-stricken than ever.
阳光从敞开的窗子里倾泻进来，小鸟在吱吱叫，却不知怎么搞的，屋子比往常更加显得光秃秃的、更穷酸。
This time, you'll see a "Xiaomao ball" stand in pole, I do not say that you really do not know if it was sleeping at Oriole birds do!
这个时候，你就会看到一个“小毛球”立在杆子上，我不说，你还真不知道那是小鸟黄鹂在睡觉呢！
You may not know it, but these semi-aquatic birds are some of the most dedicated parents in the animal kingdom.
你或许不知道，但这些半水栖的鸟是动物王国中献身精神最强的父母。
Do you know why it sleep with the mouth open? Because there are many small residues in his mouth after meal, he opens his mouth and waits for some birds to clean for him. How smart!
它吃完肉以后，牙缝里留下很多肉丝，但它又不能自己清除，所以它只能张开嘴巴让小鸟把牙缝里的肉丝清除掉。
Do you know why it sleep with the mouth open? Because there are many small residues in his mouth after meal, he opens his mouth and waits for some birds to clean for him. How smart!
它吃完肉以后，牙缝里留下很多肉丝，但它又不能自己清除，所以它只能张开嘴巴让小鸟把牙缝里的肉丝清除掉。
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