Even though modern genetics might be deflating our romantic notions about lovebirds, from a biological standpoint, pairing up with one individual and then copulating with others on the side makes a lot more sense than absolute sexual loyalty.

尽管现代遗传学可能会让我们爱情鸟的浪漫概念嗤之以鼻，从生物学的角度来看，与一个个体，后再兼与其他个体交，比绝的性忠诚更有意义。

One day they fight like cats and dogs. Another day they sing together like lovebirds.

今天两人打得不可开交，第二天就又琴瑟和鸣。

There's one final element to the lovebird's success here.

这爱情鸟的成功还有最后一个因素。

It's a rendezvous for dinosaurian trysts, a rendezvous for lovebirds.

这是恐龙的会地点，爱情鸟的碰头地点。

Oh, well, we needed food, so… - Hola, lovebirds.

我们需要食物，所以… … - 你们好啊，小情侣。

Okay, okay, guys-- new back stories. Uh, Penny and Leonard, you two lovebirds are super successful and living in New York.

好好好，我们换个背景故事，佩妮和莱纳德，你们这小恋人功成名就地一起住纽约。

But over the past 25 years, the population of these lovebirds has increased and they've become regular visitors to the city parks and backyards of many Phoenix neighborhoods.

过去 25 年里，这些爱情鸟的数量有所增加，它们已经成为凤凰城许多街区城市公园和后院的常客。

That's why they are called lovebirds?

那这就是为什么他们被称为爱鸟了吗？

We were having a good time and I gave my wife a hug and some random guy called us lovebirds.

我们玩得很开心，我拥抱了我妻子，有个随机的男人叫我们是爱鸟。

But let's talk about the expression lovebirds.

让我们谈谈“爱侣”这个表达。

Lovebirds are not real birds, right?

情侣鸟不是真的鸟，吧？

So, people started using lovebirds to describe people who are passionately in love, too.

所以，人们也开始用情人鸟来形容那些热烈相爱的人。

With an ideal climate and lots of nesting sites, Phoenix is a little slice of lovebird heaven.

凤凰城气候宜人，筑巢地点众多，是爱情鸟的天堂。

Lovebirds look so cute and sweet when they're together.

一恋人一起时看起来那么可爱甜蜜。

Believe it or not, lovebirds are real birds.

信不信由你，爱鸟是真的鸟类。

And so some crazy lovebirds decide to enter into a long-distance relationship.

因此，一些疯狂的爱情鸟决定建立异地恋。

Another day they sing together like lovebirds.

另一天，他们像爱情鸟一样一起唱歌。

It's a pair of literal lovebirds, the albatrosses.

这是一名副其实的恩爱鸟，信天翁。

Oh, that's what you get with a pair of lovebirds.

哦，这就是一恩爱鸳鸯的下场。

Expert imitators like the African Grey parrot have much larger shell regions and smaller cores than copycats who are less skilled like budgies and peach face lovebirds.

像非洲灰鹦鹉这样的专业模仿者比虎皮鹦鹉和桃脸爱情鸟等技能较低的模仿者拥有更大的外壳区域和更小的核心。