So that when one Kea finds a rare but substantial meal, it often willingly shares it.

因此，当一只食肉鹦鹉发现一顿罕见但丰盛的大餐时，通常都会心甘情愿地分享。

You might also encounter keas New Zealand's mountain parrots.

您可能还会遇到新西兰的山鹦鹉。

Dad, we can't bury Nana in a dresser from kea.

爸爸，我们不能把奶奶穿的像一只食肉鹦鹉。

We know this from New Caledonian crows, and we know this from ravens, and from keas, that they are very, very good social learners.

我们是从喀里多尼亚渡鸦那里知道的这一点，我们也从乌鸦和食肉鹦鹉那里知道这一点，它们是非常非常好的社交学习者。

The kea consistently chose from researchers' hands that picked from the first jar.

kea 始终从研究人员手中从第一个罐子里挑选。

And the results of the study hint at a common thread between their brains and those of kea.

该研究的结果暗示了它们的大脑与啄羊鸟的大脑之间存在共同点。

When later offered a choice of experimenters, the kea remembered this person and their apparent preference for black tokens.

当后来提供实验者选择时，kea 记住了这个人以及他们对黑色标记的明显偏爱。

Another test examined the kea's skill at discerning the effect of barriers in the jars.

另一项测试检查了鹦鹉辨别罐子中障碍物影响的能力。

We were very surprised to find that kea can use social cues, even from humans, to make these judgements.

AMALIA：我们非常惊讶地发现，kea 可以使用社交线索，甚至来自人类的线索，来做出这些判断。

So, we wanted to see whether kea could understand that experimenters have biases or preferences when they make their selections.

所以，我们想看看 kea 是否能理解实验者在做出选择时有偏见或偏好。

AMALIA BASTOS: The kea are great fun to work with.

AMALIA BASTOS：与鹦鹉一起工作非常有趣。

Two jars were presented to the kea: The first containing a majority of black pins, the second a majority of orange.

两个罐子被送给鹦鹉：第一个装有大部分黑色别针，第二个装有大部分橙色。

Kea look very intelligent and they behave very intelligently, I just didn't expect them to perform quite as well as chimpanzees do.

AMALIA：Kea 看起来很聪明， 行为也很聪明，我只是没想到它们的表现会像黑猩猩那么好。

VOICE OVER: Amalia Bastos has been working with kea, trying to find out whether they could predict uncertain future events.

画外音：Amalia Bastos 一直在与 kea 合作，试图找出他们是否可以预测不确定的未来事件。

VOICE OVER: A group of captive kea were taught that black tokens, and only black tokens, could be exchanged for food.

画外音：一群圈养的鹦鹉被告知可以用黑色代币换取食物，而且只有黑色代币可以换取食物。

I can't wait to see what kea do next because they keep surprising us, so I can't wait to see what the next step brings.

AMALIA：我迫不及待地想看看 kea 接下来会做什么，因为它们总是让我们感到惊讶，所以我迫不及待地想看看下一步会带来什么。

When a 1: 1 ratio of orange and black pins were present above the barrier, the kea still selected the pins taken from the jar with more black pins on top.

当障碍物上方出现 1: 1 比例的橙色和黑色别针时，kea 仍然选择从罐子中取出的别针，上面有更多的黑色别针。

In the first experiment, the kea almost always preferred the jar with the highest proportion of black tokens, even when the actual number of black tokens in each was the same.

在第一个实验中， 鹦鹉几乎总是喜欢黑色标记比例最高的罐子，即使每个罐子里的黑色标记实际数量相同。

" So you have species like the kiwi, the kakapo, kea, the kaka, the takahe—all with nice Maori names, but all in danger of going extinct." Luis Valente, an evolutionary biologist at the Natural History Museum of Berlin.

“所以你有像几维鸟、鸮鹦鹉、鹦鹉、卡卡鸟、塔卡赫鸟这样的物种——它们都有很好听的毛利名字，但都面临灭绝的危险。”柏林自然历史博物馆的进化生物学家路易斯·瓦伦特 (Luis Valente) 说。

These kea can use probabilities to predict which hand a black token is most likely to be in based on where the token is picked from and on who is doing the picking, even combining information from different contexts.

这些 kea 可以使用概率来预测黑色令牌最有可能在哪只手上，基于令牌是从哪里挑选的以及谁在挑选，甚至可以结合来自不同上下文的信息。