Life Cycle of a Swan

Life cycle of a swan.

天鹅的生命周期

What are swans? Swans are birds that live on water. Female swans are called pens and male swans are called cobs. All swans have long necks. Some swans have white feathers and an orange bill. They are called mute swans.

天鹅是什么？天鹅是生活在水域的鸟类。雌性天鹅叫做母天鹅 雄性天鹅叫做公天鹅。所有天鹅都长着长长的脖子。有些天鹅长着雪白的 羽毛和橙黄色的喙，它们叫做疣鼻天鹅。

Eggs in the Nest. The pen and cob live together. They make a nest with sticks and plants. The pen lays her eggs in the nest. She keeps the eggs warm. When the pen leaves the nest, the cob looks after the eggs.

巢里的蛋。雌天鹅和雄天鹅相伴生活，它们用树枝和植物搭建巢穴。 雌天鹅把蛋产在巢穴里，它会一直给蛋保暖。 当雌天鹅离开巢穴时，雄天鹅就会负责照看这些蛋。

Cygnets After a month, baby swans hatch out of the eggs. The baby swans are called cygnets. The cygnets are small and grey. They have short necks. The cygnets can ride on the back of the pen or cob.

小天鹅 一个月后，天鹅宝宝就会从蛋里孵化出来。 这些天鹅宝宝叫做幼天鹅。 幼天鹅个头很小，浑身是灰色的。 它们长着短短的脖子。 幼天鹅还可以坐在雌天鹅或者雄天鹅的背上。

Changing The Cygnets are still small with grey bills, but their necks grow longer. The Cygnets start to eat plants. At first, the pen gets the plants for the Cygnets. Later, they get their own plants.

成长变化 幼天鹅还很小，长着灰色的喙，但它们的脖子变得越来越长。 幼天鹅开始吃植物。一开始雌天鹅会帮幼天鹅找食物，之后它们就会自己觅食了。

Starting to fly. The cygnets grow bigger and stronger. They grow brown feathers, but they still live with the pen and cob. Soon, the cygnets stretch their wings. They run across the water and start to fly.

开始学飞 幼天鹅长得越来越大，也越来越强壮。 它们长出了棕色的羽毛， 但它们还是和雌天鹅、雄天鹅生活在一起。 很快，幼天鹅开始伸展自己的翅膀。 它们掠过水面奔跑，接着就飞起来啦。