Life on the Wing 翱翔的生命 mobi 下载 网盘 caj lrf pdf txt 阿里云

why do birds sing in the n lLorning?

why do some birds lay onluy one egg?

This wonderful book explains the extraordim Iry lifestyle of the birds of the world，from the Arctic to the Antarctic.B Iutus Ostling's beautiful and dramatic photographs，and Magnus Ullmanls fascinating text reveals the secret life of birds．Life on the Wing is uniquel a beautiful introduction to everything you want to know al out birds．

I ntrod uction

The Flying Machine

The Life of Birds

Body and Plumage

Feeding

Habitats

Breeding

Migration and Distribution

Epi logue

Acknowledgements

List of Species

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书籍介绍

This is a visual guide to how birds have become the masters of the air. Illustrated with photographs taken around the world, this book is the first to show the huge range of lifestyles that birds have used to become one of the most successful groups. From the Arctic to the Antarctic and on every ocean of the world, birds have mastered every environment, even the sky. From ostriches to buntings - each photograph shows a different bird behaving in its own unique way. Together they are a fascinating insight into the life of birds. The contents include: Introduction; The flying machine - flying techniques, the construction of wings, starting, landing; Life and way of living - hygiene, leadership, emotions, language, personality, behavior, morning song; Appearance and build frame - looks and body, ability to fly, plumage, the beak, eyes, colors, camouflage; Food habits - what they eat, how they eat, different kind of shapes of the beak, predators, seeds, insects; The environment of birds - environmental threats, diminishing species, survivors, transplantation/introduction of species; Nesting - signals, mating, eggs, nestlings, young birds; Migration and distribution - migrating habits, migrating alone or in a flock, climate, weather conditions, geography; and Epilogue.