Parrots use contact calls to interact and stay in touch when others are out of sight.

当其他鹦鹉不在视线范围内时，鹦鹉使用召唤声来互动和联系。

Monk parakeets, for example, live in large colonies and have individualized contact calls that help them stand out.

例如，和尚鹦鹉生活在大的群体中，其个性化的召唤声令它们脱颖而出。

Yellow-naped Amazon parrots, on the other hand, forage in smaller groups that learn and share highly similar contact calls.

另一方面，黄嘴亚马逊鹦鹉在较小的群体中觅食，它们拥有高度相似的召唤声。

It's completely absorbing: we listen out as foraging flocks move through forests and learn about different birds' characters and calls, from the alarm cry of the wren to the sharp contact call of the chaffinch.

这真的非常吸引人：我们听着觅食的鸟群穿过森林，了解不同鸟类的性格和叫声，从鹪鹩的警报叫声到燕雀尖锐的联络叫声。